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Berrow SR, Raistrick T, Mandle RJ, Gleeson HF. Structure-Property Relationships in Auxetic Liquid Crystal Elastomers-The Effect of Spacer Length. Polymers (Basel) 2024; 16:1957. [PMID: 39065273 PMCID: PMC11280505 DOI: 10.3390/polym16141957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/28/2024] Open
Abstract
Auxetics are materials displaying a negative Poisson's ratio, i.e., getting thicker in one or both transverse axes when subject to strain. In 2018, liquid crystal elastomers (LCEs) displaying auxetic behaviour, achieved via a biaxial reorientation, were first reported. Studies have since focused on determining the physics underpinning the auxetic response, with investigations into structure-property relationships within these systems so far overlooked. Herein, we report the first structure-property relationships in auxetic LCEs, examining the effect of changes to the length of the spacer chain. We demonstrate that for LCEs with between six and four carbons in the spacer, an auxetic response is observed, with the threshold strain required to achieve this response varying from 56% (six carbon spacers) to 81% (four carbon spacers). We also demonstrate that Poisson's ratios as low as -1.3 can be achieved. Further, we report that the LCEs display smectic phases with spacers of seven or more carbons; the resulting internal constraints cause low strains at failure, preventing an auxetic response. We also investigate the dependence of the auxetic threshold on the dynamics of the samples, finding that when accounting for the glass transition temperature of the LCEs, the auxetic thresholds converge around 56%, regardless of spacer length.
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Affiliation(s)
- Stuart R. Berrow
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, UK; (T.R.); (R.J.M.); (H.F.G.)
| | - Thomas Raistrick
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, UK; (T.R.); (R.J.M.); (H.F.G.)
| | - Richard J. Mandle
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, UK; (T.R.); (R.J.M.); (H.F.G.)
- School of Chemistry, University of Leeds, Leeds LS2 9JT, UK
| | - Helen F. Gleeson
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, UK; (T.R.); (R.J.M.); (H.F.G.)
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2
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Lee WN, Salleh NM, Velayutham T, Cheng SF. SYNTHESIS, PHASE TRANSITION BEHAVIOUR AND DIELECTRIC PROPERTIES OF SMECTOGENIC PALM-BASED LIQUID CRYSTALS CONTAINING SCHIFF BASE ESTER AND PHENYL RING. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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3
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Yang M, Huang L, Guo P, Zhou B, Tao Y, Yang C. Design, Synthesis and Performance Control of Dendritic Fluorescent Liquid Crystal Polymers with Aggregation-Induced Emission Properties. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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4
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Synthesis and self-assembly of fluorinated supramolecular mesogen-jacketed liquid crystalline polymer and its high-χ block copolymer constructed by hydrogen bonding. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Shi LY, Subramanian A, Weng L, Lee S, Kisslinger K, Nam CY, Ross CA. Selective sequential infiltration synthesis of ZnO in the liquid crystalline phase of silicon-containing rod-coil block copolymers. NANOSCALE 2022; 14:1807-1813. [PMID: 35037005 DOI: 10.1039/d1nr06065a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The combination of block copolymer (BCP) thin film self-assembly and selective infiltration synthesis of inorganic materials into one BCP block provides access to various organic-inorganic hybrids. Here, we apply sequential infiltration synthesis, a vapor-phase hybridization technique, to selectively introduce ZnO into the organic microdomains of silicon-containing rod-coil diblock copolymers and a triblock terpolymer, polydimethylsiloxane (PDMS)-b-poly{2,5-bis[(4-methoxyphenyl)-oxycarbonyl]styrene} (PDMS-b-PMPCS) and PDMS-b-polystyrene-b-PMPCS (PDMS-b-PS-b-PMPCS), in which the PMPCS rod block is a liquid crystalline polymer. The in-plane cylindrical PDMS-b-PMPCS and core-shell cylindrical and hexagonally perforated lamellar PDMS-b-PS-b-PMPCS films were infiltrated with ZnO with high selectivity to the PMPCS. The etching contrast between PDMS, PS and the ZnO-infused PMPCS enables the fabrication of ZnO/SiOx binary composites by plasma etching and reveals the core-shell morphology of the triblock terpolymer.
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Affiliation(s)
- Ling-Ying Shi
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China.
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
| | - Ashwanth Subramanian
- Department of Materials Science and Chemical Engineering, Stony Brook University, New York 11794, USA
| | - Lin Weng
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China.
| | - Sangho Lee
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
| | - Kim Kisslinger
- Center for Functional Nanomaterials, Brookhaven National Laboratory, New York 11973, USA.
| | - Chang-Yong Nam
- Department of Materials Science and Chemical Engineering, Stony Brook University, New York 11794, USA
- Center for Functional Nanomaterials, Brookhaven National Laboratory, New York 11973, USA.
| | - Caroline A Ross
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
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6
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Kanth P, Shankar Rao D, Krishna Prasad S, Singh B. Investigation of mesomorphic, photophysical and gelation behavior in aroylhydrazone based liquid crystals: Observation of mesophase crossover phenomena. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Thermo-responsive release of rhodamine B in the pore-selective poly(N-isopropylacrylamide) immobilized honeycomb-patterned porous film. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03861-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Wei W, Farooq MA, Xiong H. Cholesteric Liquid Crystalline Polyether with Broad Tunable Circularly Polarized Luminescence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11922-11930. [PMID: 34601879 DOI: 10.1021/acs.langmuir.1c02144] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Strong circularly polarized luminescence (CPL) with high purity and broad tunability was achieved in a new type of polyether-based cholesteric liquid crystalline (CLC) copolymers comprising chiral cholesteryl, nematic mesogens, and cross-linkable moieties. The phase boundary diagram of the copolymers was constructed, wherein the CLC phase in a wide composition and temperature window down to room temperature was achieved. Furthermore, reflection colors across the infrared and visible light regions can be continuously tuned by altering composition or temperature, which can be further fixed in the flexible CLC elastomer by photo-cross-linking. Introducing achiral dyes in the CLC thin films can generate strong CPL with distinct handedness and high dissymmetry factors (glum). Particularly, the left-handed full-color CPL is obtained by selective circularly polarized scattering in the spectral region outside the band gap of the CLC thin film, and the right-handed CPL with glum up to -1.05 is achieved within the band gap of the CLC thin film following the selective circularly polarized reflection mechanism. This type of CPL active material is expected to have potential applications in liquid crystal display and photonics.
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Affiliation(s)
- Wei Wei
- Department of Polymer Science, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Muhammad Amjad Farooq
- Department of Polymer Science, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Huiming Xiong
- Department of Polymer Science, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
- Center for Soft Matter and Interdisciplinary Sciences, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
- Sichuan Research Institute, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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9
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Lee C, Osuji CO. 100th Anniversary of Macromolecular Science Viewpoint: Opportunities for Liquid Crystal Polymers in Nanopatterning and Beyond. ACS Macro Lett 2021; 10:945-957. [PMID: 35549196 DOI: 10.1021/acsmacrolett.1c00350] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Liquid-crystal polymers (LCPs) integrate at a molecular level the characteristics of two important material classes, i.e., liquid crystals (LCs) and polymers. As a result, they exhibit a wide variety of intriguing physical phenomena and have useful properties in various settings. In the nearly 50 years since the discovery of the first melt-processable LCPs, there has been a remarkable expansion in the field encompassing the development of new chain architectures, the incorporation of new classes of mesogens, and the exploration of new properties and applications. As engineering materials, LCPs are historically best known in the context of high strength fibers. In a more contemporary study, the pairing of LC mesophase assembly with block copolymer (BCP) self-assembly in LC BCPs has resulted in a fascinating interplay of ordering phenomena and rich phase behavior, while lightly cross-linked networks, LC elastomers, are extensively investigated as shape memory materials based on their thermomechanical actuation. As this Viewpoint describes, these and other examples are active areas of research in which new, compelling opportunities for LCPs are emerging. We highlight a few selected areas that we view as being potentially significant in the near future, with a particular emphasis on nanopatterning. Here, the ability to readily access small feature sizes, the fluidity of the LC mesophase, and LC-based handles for achieving orientation control present a compelling combination. Opportunities for LCPs are also presented under the broad rubric of "beyond nanopatterning", and we discuss relevant challenges and potential new directions in the field.
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Affiliation(s)
- Changyeon Lee
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Chinedum O. Osuji
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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10
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Mu B, Zhang Z, Zhao Y, Hao X, Tian W. Fluorescent Columnar
Liquid‐Crystalline
Polymers: Synthesis, Mesomorphic Behaviors and Tunable Emission Wavelengths
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Bin Mu
- Shaanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an Shaanxi 710129 China
| | - Zhelin Zhang
- Shaanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an Shaanxi 710129 China
| | - Yu Zhao
- Shaanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an Shaanxi 710129 China
| | - Xiangnan Hao
- Shaanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an Shaanxi 710129 China
| | - Wei Tian
- Shaanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an Shaanxi 710129 China
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11
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Shi LY, Lee S, Du Q, Zhou B, Weng L, Liu R, Ross CA. Bending Behavior and Directed Self-Assembly of Rod-Coil Block Copolymers. ACS APPLIED MATERIALS & INTERFACES 2021; 13:10437-10445. [PMID: 33606493 DOI: 10.1021/acsami.0c22177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The formation of zigzags, chevrons, Y-junctions, and line segments is demonstrated in thin films formed from cylindrical morphology silicon-containing conformationally asymmetric rod-coil diblock copolymers and triblock terpolymers under solvent annealing. Directed self-assembly of the block copolymers within trenches yields well-ordered cylindrical microdomains oriented either parallel or transverse to the sidewalls depending on the chemical functionalization of the sidewalls, and the location and structure of concentric bends in the cylinders is determined by the shape of the trenches. The innate etching contrast, the spontaneous sharp bends and junctions, and the range of demonstrated periodicity and line/space ratios make these conformationally asymmetric rod-coil polymers attractive for nanoscale pattern generation.
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Affiliation(s)
- Ling-Ying Shi
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Sangho Lee
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Qingyang Du
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Bo Zhou
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Lin Weng
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Runze Liu
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Caroline A Ross
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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12
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Shi LY, Yin C, Zhou B, Xia W, Weng L, Ross CA. Annealing Process Dependence of the Self-Assembly of Rod–Coil Block Copolymer Thin Films. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02712] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ling-Ying Shi
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Chengxiao Yin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Bo Zhou
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Wei Xia
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Lin Weng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Caroline A. Ross
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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13
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Lyu X, Tang Z, Li Y, Xiao A, Shen Z, Zheng S, Fan XH. Tailored Polymer Particles with Ordered Network Structures in Emulsion Droplets. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:509-515. [PMID: 33347292 DOI: 10.1021/acs.langmuir.0c03179] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The structural control of block copolymer (BCP) particles, which determines their properties and utilities, is quite important. Understanding the structural relationship between solution-cast samples and polymer particles in a confined space is necessary to precisely regulate the internal structure of polymer particles. Therefore, a facile method by choosing an appropriate selective solvent is reported to prepare spherical polymer particles with ordered network structures. The rod-coil BCP, poly(dimethylsiloxane)-b-poly{2,5-bis[(4-methoxyphenyl)-oxycarbonyl]styrene} (PDMS-b-PMPCS), was chosen as a model polymer because of its strong phase segregation ability. First, the structures of the BCP with a thermodynamically stable lamellar structure cast from different selective solvents were systematically studied. Then, a polymer particle with the same internal structure as that of the solution-cast sample can be easily prepared by self-assembling in an emulsion confined space. The relatively large particle size is of importance in this process because the large value of the particle size to periodicity ratio can provide a weak confined environment. This method helps us understand the inherent self-assembling mechanism of polymer particles in an emulsion confined space and accurately control the internal structure of the polymer particle obtained.
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Affiliation(s)
- Xiaolin Lyu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Key Laboratory of Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Zhehao Tang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yujie Li
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, China
| | - Anqi Xiao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Shijun Zheng
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, China
| | - Xing-He Fan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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14
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Zhang ZK, Guo XS, Zhang TY, Wang RY, Du BY, Xu JT. Hierarchical Structures with Double Lower Disorder-to-Order Transition and Closed-Loop Phase Behaviors in Charged Block Copolymers Bearing Long Alkyl Side Groups. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01267] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ze-Kun Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiao-Shuai Guo
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Tian-Yu Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Rui-Yang Wang
- Department of Chemistry, Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang 790-784, Korea
| | - Bin-Yang Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jun-Ting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
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15
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Lei L, Han L, Ma H, Zhang R, Huang S, Shen H, Yang L, Li C, Zhang S, Bai H, Ma Q, Li Y. Cooperative and Independent Effect of Modular Functionalization on Mesomorphic Performances and Microphase Separation of Well-Designed Liquid Crystalline Diblock Copolymers. Chemistry 2020; 26:11199-11208. [PMID: 32227410 DOI: 10.1002/chem.202000268] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Indexed: 11/06/2022]
Abstract
Liquid crystalline block copolymers (LCBCPs) are promising for developing functional materials owing to an assembly of better functionalities. Taking advantage of differences in reactivity between alkynyl and vinyl over temperature during hydrosilylation, a series of LCBCPs with modular functionalization of the block copolymers (BCPs) are reported by independently and site-selectively attaching azobenzene moieties containing alkynyl (LC1 ) and Si-H (LC2 ) terminals into well-designed poly(styrene)-block-polybutadienes (PS-b-PBs) and poly(4-vinylphenyldimethylsilane)-block-polybutadienes (PVPDMS-b-PBs) produced from living anionic polymerization (LAP). By the principle of modular functionalization, it is demonstrated that mono-functionalized (PVPDMS-g-LC1 )-b-PB and PS-b-(PB-g-LC2 ) not only maintain independence but also have cooperative contributions to bi-functionalized (PVPDMS-g-LC1 )-b-(PB-g-LC2 ) in terms of mesomorphic performances and microphase separation, which is evident from differential scanning calorimetry (DSC) and polarized optical morphologies (POM) and identified by powder X-ray diffractions. With the application of the new principle of modular functionalization, local-crosslinked liquid crystalline networks (LCNs) with controlled functionality are successfully synthesized, which show well-controlled phase behaviors over molecular compositions.
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Affiliation(s)
- Lan Lei
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Li Han
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Hongwei Ma
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Ruixue Zhang
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Shuai Huang
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Heyu Shen
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Lincan Yang
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Chao Li
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Songbo Zhang
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Hongyuan Bai
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Qingchi Ma
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Yang Li
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, Liaoning Key Laboratory of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China
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16
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Lyu X, Xiao A, Shi D, Li Y, Shen Z, Chen EQ, Zheng S, Fan XH, Zhou QF. Liquid crystalline polymers: Discovery, development, and the future. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122740] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Rajendiran K, Thananjeyan K, Thodal Yoganandham S. Study on synthesis and investigation of supramolecular cuperic (Cu(II)) metallomesogens with Smectic C phase. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Krishnasamy V, Qu W, Chen C, Huo H, Ramanagul K, Gothandapani V, Mehl GH, Zhang Q, Liu F. Self-Assembly and Temperature-Driven Chirality Inversion of Cholesteryl-Based Block Copolymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02264] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Velmurugan Krishnasamy
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Wentao Qu
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Changlong Chen
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Haohui Huo
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | | | | | - Georg H. Mehl
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
- Department of Chemistry, University of Hull, Hull HU6 7RX, U.K
| | - Qilu Zhang
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Feng Liu
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
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19
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Shi LY, Lan J, Lee S, Cheng LC, Yager KG, Ross CA. Vertical Lamellae Formed by Two-Step Annealing of a Rod-Coil Liquid Crystalline Block Copolymer Thin Film. ACS NANO 2020; 14:4289-4297. [PMID: 32182037 PMCID: PMC7309319 DOI: 10.1021/acsnano.9b09702] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 03/17/2020] [Indexed: 05/05/2023]
Abstract
Silicon-containing block copolymer thin films with high interaction parameter and etch contrast are ideal candidates to generate robust nanotemplates for advanced nanofabrication, but they typically form in-plane oriented microdomains as a result of the dissimilar surface energies of the blocks. Here, we describe a two-step annealing method to produce vertically aligned lamellar structures in thin film of a silicon-containing rod-coil thermotropic liquid crystalline block copolymer. The rod-coil block copolymer with the volume fraction of the Si-containing block of 0.22 presents an asymmetrical lamellar structure in which the rod block forms a hexatic columnar nematic liquid crystalline phase. A solvent vapor annealing step first produces well-ordered in-plane cylinders of the Si-containing block, then a subsequent thermal annealing promotes the phase transition from in-plane cylinders to vertical lamellae. The pathways of the order-order transition were examined by microscopy and in situ using grazing incidence small-angle X-ray scattering and wide-angle X-ray scattering.
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Affiliation(s)
- Ling-Ying Shi
- College
of Polymer Science and Engineering, State Key Laboratory of Polymer
Materials Engineering, Sichuan University, Chengdu 610065, China
- Department
of Materials Science and Engineering, Massachusetts
Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Ji Lan
- College
of Polymer Science and Engineering, State Key Laboratory of Polymer
Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Sangho Lee
- Department
of Materials Science and Engineering, Massachusetts
Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Li-Chen Cheng
- Department
of Materials Science and Engineering, Massachusetts
Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Kevin G. Yager
- Center
for Functional Nanomaterials, Brookhaven
National Laboratory, Upton, New York 11973, United States
| | - Caroline A. Ross
- Department
of Materials Science and Engineering, Massachusetts
Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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20
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Design and Synthesis of Polysiloxane Based Side Chain Liquid Crystal Polymer for Improving the Processability and Toughness of Magnesium Hydrate/Linear Low-Density Polyethylene Composites. Polymers (Basel) 2020; 12:polym12040911. [PMID: 32295271 PMCID: PMC7240685 DOI: 10.3390/polym12040911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 11/30/2022] Open
Abstract
In this study, a polysiloxane grafted by thermotropic liquid crystal polymer (PSCTLCP) is designed and synthesized to effectively improve the processability and toughness of magnesium hydroxide (MH)/linear low-density polyethylene (LLDPE) composites. The obtained PSCTLCP is a nematic liquid crystal polymer; the liquid crystal phase exists in a temperature range of 170 to 275 °C, and its initial thermal decomposition temperature is as high as 279.6 °C, which matches the processing temperature of MH/LLDPE composites. With the increase of PSCTLCP loading, the balance melt torque of MH/LLDPE/PSCTLCP composites is gradually decreased by 42% at 5 wt % PSCTLCP loading. Moreover, the power law index of MH/LLDPE/PSCTLCP composite melt is smaller than 1, but gradually increased with PSCTLCP, the flowing activation energy of PSCTLCP-1.0 is lower than that of MH/LLDPE at the same shear rate, indicating that the sensitivity of apparent melt viscosity of the composites to shear rate and to temperature is decreased with the increase of PSCTLCP, and the processing window is broadened by the addition of PSCTLCP. Besides, the elongation at break of MH/LLDPE/PSCTLCP composites increases from 6.85% of the baseline MH/LLDPE to 17.66% at 3 wt % PSCTLCP loading. All the results indicate that PSCTLCP can significantly improve the processability and toughness of MH/LLDPE composites.
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21
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Su Z, Zhang R, Yan XY, Guo QY, Huang J, Shan W, Liu Y, Liu T, Huang M, Cheng SZ. The role of architectural engineering in macromolecular self-assemblies via non-covalent interactions: A molecular LEGO approach. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101230] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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22
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Zhang R, Su Z, Yan X, Huang J, Shan W, Dong X, Feng X, Lin Z, Cheng SZD. Discovery of Structural Complexity through Self‐Assembly of Molecules Containing Rodlike Components. Chemistry 2020; 26:6741-6756. [DOI: 10.1002/chem.201905432] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/19/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Ruimeng Zhang
- South China Advanced Institute for Soft Matter Science and Technology School of Molecular Science and Engineering South China University of Technology Guangzhou 510640 P.R. China
- Department of Polymer Science, College of Polymer Science and Polymer Engineering The University of Akron Akron OH 44325-3909 USA
| | - Zebin Su
- Department of Polymer Science, College of Polymer Science and Polymer Engineering The University of Akron Akron OH 44325-3909 USA
| | - Xiao‐Yun Yan
- Department of Polymer Science, College of Polymer Science and Polymer Engineering The University of Akron Akron OH 44325-3909 USA
| | - Jiahao Huang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering The University of Akron Akron OH 44325-3909 USA
| | - Wenpeng Shan
- Department of Polymer Science, College of Polymer Science and Polymer Engineering The University of Akron Akron OH 44325-3909 USA
| | - Xue‐Hui Dong
- South China Advanced Institute for Soft Matter Science and Technology School of Molecular Science and Engineering South China University of Technology Guangzhou 510640 P.R. China
| | - Xueyan Feng
- Department of Polymer Science, College of Polymer Science and Polymer Engineering The University of Akron Akron OH 44325-3909 USA
| | - Zhiwei Lin
- Department of Polymer Science, College of Polymer Science and Polymer Engineering The University of Akron Akron OH 44325-3909 USA
| | - Stephen Z. D. Cheng
- South China Advanced Institute for Soft Matter Science and Technology School of Molecular Science and Engineering South China University of Technology Guangzhou 510640 P.R. China
- Department of Polymer Science, College of Polymer Science and Polymer Engineering The University of Akron Akron OH 44325-3909 USA
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23
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Farooq MA, Wei W, Xiong H. Chiral Photonic Liquid Crystalline Polyethers with Widely Tunable Helical Superstructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3072-3079. [PMID: 32167775 DOI: 10.1021/acs.langmuir.0c00304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Liquid crystalline polymers with tunable structures on the scale of visible wavelength are important in optical technology due to their enhanced mechanical stability, processability, and structural integrity. Herein, we report a series of cholesteric liquid crystalline (CLC) polyethers with a widely tunable pitch length and a broad CLC phase window through a bottom-up structural design. The well-defined multicomponent polyethers were successfully synthesized by utilizing monomer-activated anionic ring-opening polymerization. Through adjustment of the composition of chiral cholesteryl (Ch) and photochromic azobenzene (Az) mesogenic moieties, rich phase behaviors have been discovered, and a phase boundary diagram was constructed consequently, wherein cholesteric helical superstructures in a broad composition range and temperature window straight down to the glassy state at room temperature were achieved. Particularly, the planar oriented helical superstructures can exhibit widely tunable and switchable reflections over the entire visible range across red, green, and blue colors through temperature and light control, which are closely related to the extraordinary flexibility of the polyether backbone. Their thermo-light dual-responsive properties provide an alternative opportunity to fabricate smart and switchable polymeric LC materials for optical applications.
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24
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Gleuwitz FR, Friedrich C, Laborie MPG. Lignin-Assisted Stabilization of an Oriented Liquid Crystalline Cellulosic Mesophase, Part A: Observation of Microstructural and Mechanical Behavior. Biomacromolecules 2020; 21:1069-1077. [DOI: 10.1021/acs.biomac.9b01352] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- F. Robert Gleuwitz
- Institute of Earth and Environmental Science, Faculty of Environment and Natural Resources, Chair of Forest Biomaterials, University of Freiburg, 79085 Freiburg Germany
- Freiburg Materials Research Centre (FMF), University of Freiburg, 79104 Freiburg, Germany
| | - Christian Friedrich
- Freiburg Materials Research Centre (FMF), University of Freiburg, 79104 Freiburg, Germany
- Institute for Macromolecular Chemistry, University of Freiburg, 79104 Freiburg, Germany
| | - Marie-Pierre G. Laborie
- Institute of Earth and Environmental Science, Faculty of Environment and Natural Resources, Chair of Forest Biomaterials, University of Freiburg, 79085 Freiburg Germany
- Freiburg Materials Research Centre (FMF), University of Freiburg, 79104 Freiburg, Germany
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25
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Dai Y, Zheng Y, Xue T, He F, Ji H, Qi Z. A novel fluorescent probe for rapidly detection cysteine in cystinuria urine, living cancer/normal cells and BALB/c nude mice. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 225:117490. [PMID: 31505388 DOI: 10.1016/j.saa.2019.117490] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/13/2019] [Accepted: 08/25/2019] [Indexed: 05/22/2023]
Abstract
Cysteine (Cys), an important organic small molecule containing sulfhydryl groups, plays paramount functions in human pathologies and physiologies. The detection of Cys in living vivo is essential for studying its roles. Here, we designed and synthesized a novel red-emission fluorescent probe AXPI-Cys with highly sensitivity (LOD = 48.9 ± 0.23 nM), rapidly response (<7 min) and colorimetric for detection cysteine. More importantly, the AXPI-Cys was determined Cys in real cystinuria urine samples for the first time with the satisfactory results (92%-99.96%) and employed for specifically location of endogenous/exogenous Cys in living cancer/normal cells and almost non-toxic, that is very valuable for diagnosis of cystinuria and observation of the distribution of Cys in normal cells. Notably, the AXPI-Cys was applied to imaging Cys in BALB/c nude mice with good biocompatibility and desirable tissue-penetration depth. Owing to the superior capability of AXPI-Cys, it provided a desired method to detect Cys in urine samples and cells, and exhibited munificent potential usage in biosystems and imaging studies in vivo.
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Affiliation(s)
- Yanpeng Dai
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
| | - Yu Zheng
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
| | - Tianzi Xue
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
| | - Fangru He
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
| | - Hefang Ji
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
| | - Zhengjian Qi
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China.
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26
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Shi D, Chang WY, Ren XK, Yang S, Chen EQ. Structures and properties of side-chain liquid crystalline polynorbornenes containing an amide group: hydrogen bonding interactions and spacer length effects. Polym Chem 2020. [DOI: 10.1039/d0py00586j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Side-chain liquid crystalline polynorbornenes based on benzanilide mesogens exhibit rich self-organization behaviours and enhanced mechanical properties owing to the lateral hydrogen bond interaction that can be tuned by the spacer length.
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Affiliation(s)
- Dong Shi
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry
- Peking University
| | - Wen-Ying Chang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry
- Peking University
| | - Xiang-Kui Ren
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Shuang Yang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry
- Peking University
| | - Er-Qiang Chen
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry
- Peking University
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27
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Huang S, Han L, Ma H, Lei L, Zhang R, Shen H, Yang L, Li C, Zhang S, Li Y. Determination of refractive index increment of synthetic polybutadienes and microstructural control of grafting density and liquid crystalline properties. Polym Chem 2020. [DOI: 10.1039/d0py00050g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Polybutadienes (PBs) with microstructural control of 8% to 94% moles of 1,2-olefins synthesizedvialiving anionic polymerization (LAP) were used as precursors for the synthesis of PB-based liquid crystalline polymers (LCPs) with well-controlled grafting densities.
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28
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Liu K, Shen Y, Li X, Zhang Y, Quan Y, Cheng Y. Strong CPL of achiral liquid crystal fluorescent polymer via the regulation of AIE-active chiral dopant. Chem Commun (Camb) 2020; 56:12829-12832. [DOI: 10.1039/d0cc05523a] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Strong CPL induced by ternary polymer dispersed cholesteric liquid crystals (PD-CLCs) can deliver a new strategy for designing excellent CPL materials.
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Affiliation(s)
- Kerui Liu
- Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Yihao Shen
- Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Xiaojing Li
- Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Yu Zhang
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Yiwu Quan
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Yixiang Cheng
- Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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29
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Ndaya D, Bosire R, Vaidya S, Kasi RM. Molecular engineering of stimuli-responsive, functional, side-chain liquid crystalline copolymers: synthesis, properties and applications. Polym Chem 2020. [DOI: 10.1039/d0py00749h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review describes recent progress made in designing stimuli-responsive, functional, side-chain, end-on mesogen attached liquid crystalline polymers (LCPs).
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Affiliation(s)
- Dennis Ndaya
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
| | - Reuben Bosire
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
| | | | - Rajeswari M. Kasi
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
- Polymer Program
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30
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Tang Z, Hou PP, Zhang W, Lyu X, Shen Z, Fan XH. Hierarchically Ordered Structures of Rod–Rod Block Copolymers Containing Two Mesogen-Jacketed Liquid Crystalline Polymers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhehao Tang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ping-Ping Hou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Wei Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xiaolin Lyu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xing-He Fan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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31
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Gao L, Ji Z, Zhao Y, Cai Y, Li X, Tu Y. Synthesis and Solution Self-Assembly Properties of Cyclic Rod-Coil Diblock Copolymers. ACS Macro Lett 2019; 8:1564-1569. [PMID: 35619391 DOI: 10.1021/acsmacrolett.9b00747] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Typical cyclic diblock polymers are synthesized from their linear precursors via the ring-closure strategy in dilute conditions. Here we demonstrate a pseudo-high-dilution condition strategy for the efficient synthesis of cyclic rod-coil diblock copolymer from its linear precursor in selective solvents. The critical association concentration (CAC) of linear precursor is used for the control of unimer concentration during cyclization, while high copolymer synthetic concentrations are achieved via the dynamic equilibrium between unimers and micelles. The effects of CAC and micelle concentration on cyclization yield are studied and pure cyclic rod-coil diblock copolymer was obtained after azide resin treatment. Property investigations show the cyclic rod-coil copolymer has a larger second virial coefficient than its linear counterpart and self-assembles in selective solvents to form larger but looser spherical micelles due to its constraint topological structure.
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Affiliation(s)
- Lingfeng Gao
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Zhichao Ji
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Yiming Zhao
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Yuanli Cai
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xiaohong Li
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Yingfeng Tu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
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32
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Hierarchical nanostructures of a liquid crystalline block copolymer with a hydrogen-bonded calamitic mesogen. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Li X, Mu B, Chen C, Chen J, Liu J, Liu F, Chen D. Significantly Enhanced Thermotropic Liquid Crystalline Columnar Mesophases in Stereoregular Polymethylenes with Discotic Triphenylene Side Groups. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01433] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Xiao Li
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Collaborative Innovation Center of Chemistry for Life Sciences, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Bin Mu
- School of Natural and Applied Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Changlong Chen
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science & Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jian Chen
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Collaborative Innovation Center of Chemistry for Life Sciences, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jiang Liu
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Collaborative Innovation Center of Chemistry for Life Sciences, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Feng Liu
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science & Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Dongzhong Chen
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Collaborative Innovation Center of Chemistry for Life Sciences, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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34
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Sperner M, Tober N, Detert H. Tristriazolotriazines with Azobenzene Arms ‐ Acidochromic Dyes and Discotic Liquid Crystals. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900665] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Marcel Sperner
- Institute for Organic Chemistry Johannes Gutenberg‐University Mainz Duesbergweg, 10–14 55099 Mainz Germany
| | - Natalie Tober
- Institute for Organic Chemistry Johannes Gutenberg‐University Mainz Duesbergweg, 10–14 55099 Mainz Germany
| | - Heiner Detert
- Institute for Organic Chemistry Johannes Gutenberg‐University Mainz Duesbergweg, 10–14 55099 Mainz Germany
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35
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Wang M, Bao WW, Chang WY, Chen XM, Lin BP, Yang H, Chen EQ. Poly[(side-on mesogen)- alt-(end-on mesogen)]: A Compromised Molecular Arrangement. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00607] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Meng Wang
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Jiangsu Key Laboratory for Science and Application of Molecular Ferroelectrics, Southeast University, Nanjing, Jiangsu Province 211189, China
| | - Wei-Wei Bao
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Jiangsu Key Laboratory for Science and Application of Molecular Ferroelectrics, Southeast University, Nanjing, Jiangsu Province 211189, China
| | - Wen-Ying Chang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics at the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Xu-Man Chen
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Jiangsu Key Laboratory for Science and Application of Molecular Ferroelectrics, Southeast University, Nanjing, Jiangsu Province 211189, China
| | - Bao-Ping Lin
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Jiangsu Key Laboratory for Science and Application of Molecular Ferroelectrics, Southeast University, Nanjing, Jiangsu Province 211189, China
| | - Hong Yang
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Jiangsu Key Laboratory for Science and Application of Molecular Ferroelectrics, Southeast University, Nanjing, Jiangsu Province 211189, China
| | - Er-Qiang Chen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics at the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
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36
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Shi LY, Liao F, Cheng LC, Lee S, Ran R, Shen Z, Ross CA. Core-Shell and Zigzag Nanostructures from a Thin Film Silicon-Containing Conformationally Asymmetric Triblock Terpolymer. ACS Macro Lett 2019; 8:852-858. [PMID: 35619504 DOI: 10.1021/acsmacrolett.9b00283] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The self-assembly of multiblock copolymers generates diverse hierarchical nanostructures and greatly extends the range of microdomain geometries beyond those produced by diblock copolymers. We report the synthesis of a conformationally asymmetric ABC triblock terpolymer in which the end blocks are a mesogen-jacketed liquid crystalline polymer and poly(dimethylsiloxane), respectively, and its self-assembly under mixed solvent vapor annealing forms a range of sphere, cylinder, and perforated lamellar core-shell morphologies, as well as stacked multilevel structures. Sub-7 nm diameter SiOx nanopatterns were generated by selective plasma etching of the small volume fraction Si-containing core block giving a line/space ratio of ∼1:4. Moreover, the conformational asymmetry of this terpolymer leads to zigzag cylinders on a flat substrate and stable cylinder alignment transverse to template sidewalls within lithographically patterned trenches.
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Affiliation(s)
- Ling-Ying Shi
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Fen Liao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Li-Chen Cheng
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Sangho Lee
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Rong Ran
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center of Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Caroline A. Ross
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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37
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Zheng JF, Tang T, Ding LL, Xu P, Zhang R, Peng DL, Yang S, Chen EQ. Phase Behavior of Phasmidic Mesogen-Jacketed Liquid Crystalline Polymers Displaying Chain Bundling. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00687] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jun-Feng Zheng
- Department of Applied Chemistry, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Tao Tang
- Department of Applied Chemistry, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lin-Lin Ding
- Department of Applied Chemistry, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Peng Xu
- Department of Applied Chemistry, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Rui Zhang
- Department of Applied Chemistry, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Dong-Lai Peng
- School of Material & Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China
| | - Shuang Yang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Er-Qiang Chen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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38
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Luo H, Zhou X, Ellingford C, Zhang Y, Chen S, Zhou K, Zhang D, Bowen CR, Wan C. Interface design for high energy density polymer nanocomposites. Chem Soc Rev 2019; 48:4424-4465. [PMID: 31270524 DOI: 10.1039/c9cs00043g] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review provides a detailed overview on the latest developments in the design and control of the interface in polymer based composite dielectrics for energy storage applications. The methods employed for interface design in composite systems are described for a variety of filler types and morphologies, along with novel approaches employed to build hierarchical interfaces for multi-scale control of properties. Efforts to achieve a close control of interfacial properties and geometry are then described, which includes the creation of either flexible or rigid polymer interfaces, the use of liquid crystals and developing ceramic and carbon-based interfaces with tailored electrical properties. The impact of the variety of interface structures on composite polarization and energy storage capability are described, along with an overview of existing models to understand the polarization mechanisms and quantitatively assess the potential benefits of different structures for energy storage. The applications and properties of such interface-controlled materials are then explored, along with an overview of existing challenges and practical limitations. Finally, a summary and future perspectives are provided to highlight future directions of research in this growing and important area.
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Affiliation(s)
- Hang Luo
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China.
| | - Xuefan Zhou
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China.
| | - Christopher Ellingford
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, CV4 7AL, UK.
| | - Yan Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China. and Department of Mechanical Engineering, University of Bath, Bath, BA2 2ET, UK.
| | - Sheng Chen
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China
| | - Kechao Zhou
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China.
| | - Dou Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, China.
| | - Chris R Bowen
- Department of Mechanical Engineering, University of Bath, Bath, BA2 2ET, UK.
| | - Chaoying Wan
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, CV4 7AL, UK.
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Jiang XQ, Zhao RY, Chang WY, Yin DX, Guo YC, Wang W, Liang DH, Yang S, Shi AC, Chen EQ. Highly Ordered Sub-10 nm Patterns Based on Multichain Columns of Side-Chain Liquid Crystalline Polymers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00910] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | | | | | | | | | | | | | | | - An-Chang Shi
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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40
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Zhu JC, Han T, Guo Y, Wang P, Xie HL, Meng ZG, Yu ZQ, Tang BZ. Design and Synthesis of Luminescent Liquid Crystalline Polymers with “Jacketing” Effect and Luminescent Patterning Applications. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00221] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ji-Chun Zhu
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China
| | - Ting Han
- School of Chemistry and Environmental Engineering, College of Materials Science and Engineering, Center for AIE Research, Shenzhen University, Shenzhen 518060, China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Yang Guo
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China
| | - Ping Wang
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China
| | - He-Lou Xie
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China
| | - Zhen-Gong Meng
- School of Chemistry and Environmental Engineering, College of Materials Science and Engineering, Center for AIE Research, Shenzhen University, Shenzhen 518060, China
| | - Zhen-Qiang Yu
- School of Chemistry and Environmental Engineering, College of Materials Science and Engineering, Center for AIE Research, Shenzhen University, Shenzhen 518060, China
| | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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41
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Tao L, Li ML, Yang KP, Guan Y, Wang P, Shen Z, Xie HL. Color-Tunable and Stimulus-Responsive Luminescent Liquid Crystalline Polymers Fabricated by Hydrogen Bonding. ACS APPLIED MATERIALS & INTERFACES 2019; 11:15051-15059. [PMID: 30942068 DOI: 10.1021/acsami.9b01476] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Luminescent liquid crystalline polymers (LLCPs) show extensive application potentials, such as liquid crystal displays and circularly polarized luminescence. In this work, we employ a hydrogen-bonding strategy different from the traditional covalent-bonding method to fabricate LLCPs. First, the acceptor and donor of hydrogen bonding, (4,4'-dibutanoxy tetraphenylethylene)-1-pyridine (PTPEC4) and poly(2-vinyl terephthalic acid) (PPA), respectively, are successfully synthesized. Then, mixtures with different molar ratios ( x's) of PTPEC4 to PPA are used to prepare a series of LLCPs [denoted as PPA(PTPEC4) x]. The resultant LLCPs show a smectic A phase ( x ≥ 0.8), a columnar nematic phase (0.6 ≤ x ≤ 0.05), and an amorphous state ( x = 0.025), depending on the x value. Meanwhile, all polymers exhibit typical aggregation-induced emission behavior. More interestingly, with the variation of the PTPEC4 content, the series of LLCPs show different colors, that is, the emission peak red shifts from 510 nm ( x = 1.0) to 551 nm ( x = 0.025). Furthermore, because of the reversible protonation effect of the N atom of pyridine in PTPEC4 by the strong proton acid, PPA(PTPEC4) x shows reversible color transformation. This work provides a new method to construct LLCPs with different emission colors and reversible color transformation.
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Affiliation(s)
- Lei Tao
- Key Laboratory of Environment-Friendly Chemistry and Application in Ministry of Education, and Key Laboratory of Advanced Functional Polymer Materials of Colleges, Universities of Hunan Province and College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , China
| | - Ming-Li Li
- Key Laboratory of Environment-Friendly Chemistry and Application in Ministry of Education, and Key Laboratory of Advanced Functional Polymer Materials of Colleges, Universities of Hunan Province and College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , China
| | - Kai-Peng Yang
- Key Laboratory of Environment-Friendly Chemistry and Application in Ministry of Education, and Key Laboratory of Advanced Functional Polymer Materials of Colleges, Universities of Hunan Province and College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , China
| | - Yan Guan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Ping Wang
- Key Laboratory of Environment-Friendly Chemistry and Application in Ministry of Education, and Key Laboratory of Advanced Functional Polymer Materials of Colleges, Universities of Hunan Province and College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , China
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - He-Lou Xie
- Key Laboratory of Environment-Friendly Chemistry and Application in Ministry of Education, and Key Laboratory of Advanced Functional Polymer Materials of Colleges, Universities of Hunan Province and College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , China
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers , Hunan University of Science and Technology , Xiangtan , Hunan 411201 , China
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42
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Liu N, Lu H, Jiang Z, Lu Y, Zou H, Zhou L, Wu Z. Facile Synthesis of Helical Rod–Coil Block Polymers by the Combination of ATRP and Pd(II)‐Initiated Isocyanides Polymerizations. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201800574] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Na Liu
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
| | - Hao‐Jun Lu
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
| | - Zhi‐Qiang Jiang
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
| | - Yu‐Bing Lu
- Lu'an Vocational Technical College 1 Zhengyang Road Lu'an City 237000 Anhui Province China
| | - Hui Zou
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
| | - Li Zhou
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
| | - Zong‐Quan Wu
- Department of Polymer Science and EngineeringSchool of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology 193 Tunxi Road Hefei 230009 Anhui Province China
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43
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Shi LY, Lee S, Cheng LC, Huang H, Liao F, Ran R, Yager KG, Ross CA. Thin Film Self-Assembly of a Silicon-Containing Rod–Coil Liquid Crystalline Block Copolymer. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b01938] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ling-Ying Shi
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Sangho Lee
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Li-Chen Cheng
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Hejin Huang
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Fen Liao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Rong Ran
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Kevin G. Yager
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Caroline A. Ross
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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44
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Zhu JC, Guan Y, Luo ZW, Li ZX, Huang HH, Wang P, Shen Z, Xie HL. The design, synthesis and order-enhanced emission of luminescent liquid crystalline polymers based on a “jacketing” effect. Polym Chem 2019. [DOI: 10.1039/c9py01290g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Two resultant luminescent liquid crystalline polymers (LLCPs) show higher emissive efficiency and the polymers form more ordered structures after thermal annealing, which means that an improvement in ordering can enhance emission.
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Affiliation(s)
- Ji-Chun Zhu
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
- and Key Laboratory of Advanced Functional Polymer Materials of Colleges
- Universities of Hunan Province and College of Chemistry
- Xiangtan University
- Xiangtan
| | - Yan Guan
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Zhi-Wang Luo
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
- and Key Laboratory of Advanced Functional Polymer Materials of Colleges
- Universities of Hunan Province and College of Chemistry
- Xiangtan University
- Xiangtan
| | - Zhen-Xing Li
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
- and Key Laboratory of Advanced Functional Polymer Materials of Colleges
- Universities of Hunan Province and College of Chemistry
- Xiangtan University
- Xiangtan
| | - Hui-Hong Huang
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
- and Key Laboratory of Advanced Functional Polymer Materials of Colleges
- Universities of Hunan Province and College of Chemistry
- Xiangtan University
- Xiangtan
| | - Ping Wang
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
- and Key Laboratory of Advanced Functional Polymer Materials of Colleges
- Universities of Hunan Province and College of Chemistry
- Xiangtan University
- Xiangtan
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - He-Lou Xie
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
- and Key Laboratory of Advanced Functional Polymer Materials of Colleges
- Universities of Hunan Province and College of Chemistry
- Xiangtan University
- Xiangtan
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45
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Pan H, Zhang W, Xiao A, Lyu X, Hou P, Shen Z, Fan X. Hierarchically ordered nanostructures of a supramolecular rod-coil block copolymer with a hydrogen-bonded discotic mesogen. Polym Chem 2019. [DOI: 10.1039/c8py01726c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supramolecular liquid crystalline block copolymers prepared via hydrogen bonding exhibit hierarchical structures that can be tuned by varying the molar ratio of the discotic hydrogen-bonding acceptor to the block copolymer donor.
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Affiliation(s)
- Hongbing Pan
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Wei Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Anqi Xiao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Xiaolin Lyu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Pingping Hou
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Xinghe Fan
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
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46
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Tu Y, Wu Y, Pei J, Qu W, Lu H, Liu F, Chen XF. Synthesis and supramolecular liquid crystalline structure modulation of side-chain polynorbornenes with asymmetrical substituent mesogenic groups. Polym Chem 2019. [DOI: 10.1039/c9py01197h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The substituent position and number have an important effect on the supramolecular liquid crystalline structure evolution in side-chain polymers.
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Affiliation(s)
- Yuanyang Tu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Yijin Wu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Jiwei Pei
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Wentao Qu
- State Key Laboratory for Mechanical Behavior of Materials
- Shaanxi International Research Center for Soft Matter
- School of Materials Science & Engineering
- Xi'an Jiaotong University
- Xi'an 710049
| | - Huanjun Lu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Feng Liu
- State Key Laboratory for Mechanical Behavior of Materials
- Shaanxi International Research Center for Soft Matter
- School of Materials Science & Engineering
- Xi'an Jiaotong University
- Xi'an 710049
| | - Xiao-Fang Chen
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
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47
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Yang X, Chen S, Luo H, Xu H, Chen S. Self-organization of cholesterol-side-chain liquid crystalline polymers by tailoring the main chain structure and flexible spacer length. NEW J CHEM 2019. [DOI: 10.1039/c8nj06168h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Liquid crystal polymers with cholesterol side-chains formed different smectic A phases under the influence of the main-chain structure and flexible spacer length.
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Affiliation(s)
- Xiwen Yang
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Shaonan Chen
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Hang Luo
- State Key Laboratory of Powder Metallurgy
- Central South University
- Changsha
- China
| | - Haoran Xu
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Sheng Chen
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
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48
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Wei W, Xiong H. Orientation and Morphology Control of the Liquid Crystalline Block Copolymer Thin Film by Liquid Crystalline Solvent. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:15455-15461. [PMID: 30422666 DOI: 10.1021/acs.langmuir.8b03318] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The critical challenge to engineer the morphological structures in the strongly phase-segregated block copolymer thin film is to overcome the preferential wetting of the blocks at the interface and direct the self-assembly process. Herein, we utilize surface activity and selective solvation of a nematic (N) liquid crystalline (LC) solvent, 5CB, to facilely alter the LC anchoring and the orientation of the nanophase separated structures of the smectic-nematic (S-N) LC block copolymer thin film. For the neat S-N diblock copolymer thin film, the nanostructures are parallel aligned. In contrast, with continuous introduction of 5CB into the system, the orientations of the characteristic nanostructures and the morphologies of the LC thin film can be consequently changed, yielding the perpendicularly oriented lamellar or cylindrical structures with the feature size below 10 nm. The homeotropic alignment of the 5CB nematics near the air interface plays a critical role to induce this unique behavior in the S-N/5CB systems, which offers an opportunity to fine-tune the interfacial structures and the morphological patterning in the block copolymer thin film.
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49
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Xu L, Zhang WB. The pursuit of precision in macromolecular science: Concepts, trends, and perspectives. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.09.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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50
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Li ZW, Zhu YL, Lu ZY, Sun ZY. General patchy ellipsoidal particle model for the aggregation behaviors of shape- and/or surface-anisotropic building blocks. SOFT MATTER 2018; 14:7625-7633. [PMID: 30152819 DOI: 10.1039/c8sm01631c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We present a general patchy ellipsoidal particle model suitable for conducting dynamics simulations of the aggregation behaviors of various shape- and/or surface-anisotropic colloids, especially patchy ellipsoids with continuously variable shape and tunable patchiness. To achieve higher computational efficiency in dynamics simulations, we employ a multi-GPU acceleration technique based on a domain decomposition algorithm. The validation and performance evaluation of this GPU-assisted model are performed by simulating several typical benchmark systems of non-patchy and patchy ellipsoids. Given the generality and efficiency of our GPU-assisted patchy ellipsoidal particle model, it will provide a highly feasible dynamics simulation framework to investigate the aggregation behaviors of anisotropic soft matter systems comprised of shape- and/or surface-anisotropic building blocks.
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Affiliation(s)
- Zhan-Wei Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
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