1
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Tang Q, Zhong L, Tang C, Huang Y. Unified theoretical framework for temperature regulation via phase transition. Phys Rev E 2024; 110:014112. [PMID: 39161013 DOI: 10.1103/physreve.110.014112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/11/2024] [Indexed: 08/21/2024]
Abstract
Phase transition usually consumes or releases energy to produce cooling or heating within different materials, providing a generalized framework for temperature regulation in practical applications. Because of the strong coupling between the enthalpy change in thermodynamics and heat-mass transfer kinetics, unveiling the mechanism of temperature regulation via the phase transition remains a great challenge. Here, we develop a new theoretical method by establishing a connection of enthalpy change from thermodynamics to phase transition dynamics to study evaporation-induced cooling as an example. Our new approach can spontaneously generate evaporative cooling at interfaces, and the predicted results are consistent with recent experiments. The evaporation-induced steady vapor is dictated by an anomalous cold-to-hot mass transfer through temperature-dependent chemical potentials, which enables temperature regulation inside liquids via a thermodynamic-kinetic interplay. Moreover, we show that a simple prohibition of heat exchange between liquids and reservoir can greatly enhance the cooling magnitude by a factor of 2∼4, which is highly dependent on the thermodynamics and kinetic coefficients of liquids. Our new method paves the way for exploration of cooling or heating induced by different phase transitions, such as evaporation, sublimation, or condensation, in a unified framework, which can significantly promote the development of temperature regulation by phase transitions.
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2
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Qian Q, Furner CT, Li CY. Crystallization of Poly(l-lactic acid) on Water Surfaces via Controlled Solvent Evaporation and Langmuir-Blodgett Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6285-6294. [PMID: 38478723 DOI: 10.1021/acs.langmuir.3c03788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Solvent evaporation is one of the most fundamental processes in soft matter. Structures formed via solvent evaporation are often complex yet tunable via the competition between solute diffusion and solvent evaporation time scales. This work concerns the polymer evaporative crystallization on the water surface (ECWS). The dynamic and two-dimensional (2D) nature of the water surface offers a unique way to control the crystallization pathway of polymeric materials. Using poly(l-lactic acid) (PLLA) as the model polymer, we demonstrate that both one-dimensional (1D) crystalline filaments and two-dimensional (2D) lamellae are formed via ECWS, in stark contrast to the 2D Langmuir-Blodgett monolayer systems as well as polymer solution crystallization. Results show that this filament-lamella biphasic structure is tunable via chemical structures such as molecular weight and processing conditions such as temperature and evaporation rate.
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Affiliation(s)
- Qian Qian
- Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Carl T Furner
- Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Christopher Y Li
- Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
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3
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Li D, Jiao L, Chen R, Zhu X, Ye D, Yang Y, Li W, Li H, Liao Q. Controllable light-induced droplet evaporative crystallization. SOFT MATTER 2021; 17:8730-8741. [PMID: 34528051 DOI: 10.1039/d1sm00912e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Droplet evaporative crystallization is one of the practical tools for clinical diagnosis, environmental monitoring, and pharmaceutical synthesis. Herein, we proposed a controllable and flexible light strategy to manipulate the droplet evaporative crystallization, in which the photothermal effect of a focused infrared laser actuated intense evaporation to attain the droplet evaporative crystallization. Due to the localized heating effect, not only the droplet evaporative crystallization could be promoted, but also the resultant Marangoni-flow enabled the crystals to be concentrated, exhibiting excellent controllability. Besides, a relationship between the crystallization starting time and the solution concentration/laser power was achieved, which benefited the manipulation of the droplet evaporative crystallization. The light strategy proposed in the present study possesses promising potential for future applications.
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Affiliation(s)
- Dongliang Li
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China.
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Long Jiao
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China.
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Rong Chen
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China.
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Xun Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China.
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Dingding Ye
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China.
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Yang Yang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China.
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Wei Li
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China.
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Haonan Li
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China.
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Qiang Liao
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China.
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
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4
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Bendrea AD, Cianga L, Ailiesei GL, Ursu EL, Göen Colak D, Cianga I. 3,4-Ethylenedioxythiophene (EDOT) End-Group Functionalized Poly-ε-caprolactone (PCL): Self-Assembly in Organic Solvents and Its Coincidentally Observed Peculiar Behavior in Thin Film and Protonated Media. Polymers (Basel) 2021; 13:2720. [PMID: 34451259 PMCID: PMC8400159 DOI: 10.3390/polym13162720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/10/2021] [Accepted: 08/12/2021] [Indexed: 01/05/2023] Open
Abstract
End-group functionalization of homopolymers is a valuable way to produce high-fidelity nanostructured and functional soft materials when the structures obtained have the capacity for self-assembly (SA) encoded in their structural details. Herein, an end-functionalized PCL with a π-conjugated EDOT moiety, (EDOT-PCL), designed exclusively from hydrophobic domains, as a functional "hydrophobic amphiphile", was synthesized in the bulk ROP of ε-caprolactone. The experimental results obtained by spectroscopic methods, including NMR, UV-vis, and fluorescence, using DLS and by AFM, confirm that in solvents with extremely different polarities (chloroform and acetonitrile), EDOT-PCL presents an interaction- and structure-based bias, which is strong and selective enough to exert control over supramolecular packing, both in dispersions and in the film state. This leads to the diversity of SA structures, including spheroidal, straight, and helical rods, as well as orthorhombic single crystals, with solvent-dependent shapes and sizes, confirming that EDOT-PCL behaves as a "block-molecule". According to the results from AFM imaging, an unexpected transformation of micelle-type nanostructures into single 2D lamellar crystals, through breakout crystallization, took place by simple acetonitrile evaporation during the formation of the film on the mica support at room temperature. Moreover, EDOT-PCL's propensity for spontaneous oxidant-free oligomerization in acidic media was proposed as a presumptive answer for the unexpected appearance of blue color during its dissolution in CDCl3 at a high concentration. FT-IR, UV-vis, and fluorescence techniques were used to support this claim. Besides being intriguing and unforeseen, the experimental findings concerning EDOT-PCL have raised new and interesting questions that deserve to be addressed in future research.
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Affiliation(s)
- Anca-Dana Bendrea
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore-Ghica Voda Alley, 700487 Iasi, Romania; (A.-D.B.); (E.-L.U.)
| | - Luminita Cianga
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore-Ghica Voda Alley, 700487 Iasi, Romania; (A.-D.B.); (E.-L.U.)
| | - Gabriela-Liliana Ailiesei
- NMR Spectroscopy Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore-Ghica Voda Alley, 700487 Iasi, Romania;
| | - Elena-Laura Ursu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore-Ghica Voda Alley, 700487 Iasi, Romania; (A.-D.B.); (E.-L.U.)
| | - Demet Göen Colak
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey;
| | - Ioan Cianga
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore-Ghica Voda Alley, 700487 Iasi, Romania; (A.-D.B.); (E.-L.U.)
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5
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Tang Q, Müller M. Evaporation-Induced Liquid Expansion and Bubble Formation in Binary Mixtures. PHYSICAL REVIEW LETTERS 2021; 126:028003. [PMID: 33512230 DOI: 10.1103/physrevlett.126.028003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
We observe an anomalous liquid expansion after quenching a binary mixture at coexistence to low pressures in the vapor phase by numerical calculations. This evaporation-induced expansion can be attributed to the pressure imbalance near the liquid-vapor interface, which originates from the interplay between the complex thermodynamics of binary mixtures both in the vapor and liquid phases, as well as their dynamical asymmetries. In addition, careful modulation of the pressure quench in the vapor phase can result in spinodal bubble formation inside liquid phase. The results indicate that the thermodynamics-kinetics interplay could foster our fundamental understanding of the evaporation process and promote its practical applications.
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Affiliation(s)
- Qiyun Tang
- Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
| | - Marcus Müller
- Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
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6
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Han T, Choi Y, Kwon JT, Kim MH, Jo H. Evaporation-Crystallization Method to Promote Coalescence-Induced Jumping on Superhydrophobic Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9843-9848. [PMID: 32787044 DOI: 10.1021/acs.langmuir.0c01468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Biphilic surfaces exhibit outstanding condensation efficiency compared to surfaces having homogeneous wettability. Especially, hydrophilic patterns on a superhydrophobic substrate significantly promote the coalescence-induced jumping of condensed droplets by increasing the nucleation rate of condensation, thus enhancing the condensation efficiency drastically. However, the application of biphilic surfaces in practical industries remains challenging because controlling the size and spacing of the hydrophilic spots on large and complex surfaces is difficult. In this study, we have achieved heterogeneous wettability using the evaporation-crystallization method, which can be applied to various surfaces as required by industries. The crystals generated using the evaporation-crystallization process drastically increased the number density of condensed droplets on a superhydrophobic surface (SHS), so the developed biphilic surface increased the cumulative volume of jumping droplets by up to 63% compared to that on a conventional superhydrophobic surface. Furthermore, the condensation dynamics on the biphilic surface were analyzed with the classical nucleation theory and the Ohnesorge number. The analysis results indicated that the generated hydrophilic crystals can reduce the nucleation energy barrier and decrease the available excessive surface energy of coalesced droplets on the biphilic surface; this implies that the size distribution of the crystals determines the condensation dynamics. In sum, this study not only introduced an effective surface tailoring approach for enhancing condensation but also provided insights into the design of optimum biphilic surfaces for various conditions, creating new opportunities to widen the applicability of biphilic surfaces in practical industries that exploit condensation.
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Affiliation(s)
- Taeyang Han
- Division of Advanced Nuclear Engineering, POSTECH, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Younghyun Choi
- Department of Mechanical Engineering, POSTECH, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Jeong-Tae Kwon
- Division of Mechanical and Automotive Engineering, Hoseo University, Asan, Chungnam 31499, Republic of Korea
| | - Moo Hwan Kim
- Division of Advanced Nuclear Engineering, POSTECH, Pohang, Gyeongbuk 37673, Republic of Korea
- Department of Mechanical Engineering, POSTECH, Pohang, Gyeongbuk 37673, Republic of Korea
| | - HangJin Jo
- Division of Advanced Nuclear Engineering, POSTECH, Pohang, Gyeongbuk 37673, Republic of Korea
- Department of Mechanical Engineering, POSTECH, Pohang, Gyeongbuk 37673, Republic of Korea
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7
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Mei S, Wilk JT, Chancellor AJ, Zhao B, Li CY. Fabrication of 2D Block Copolymer Brushes via a Polymer-Single-Crystal-Assisted-Grafting-to Method. Macromol Rapid Commun 2020; 41:e2000228. [PMID: 32608541 DOI: 10.1002/marc.202000228] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/25/2020] [Indexed: 11/08/2022]
Abstract
Block copolymer brushes are of great interest due to their rich phase behavior and value-added properties compared to homopolymer brushes. Traditional synthesis involves grafting-to and grafting-from methods. In this work, a recently developed "polymer-single-crystal-assisted-grafting-to" method is applied for the preparation of block copolymer brushes on flat glass surfaces. Triblock copolymer poly(ethylene oxide)-b-poly(l-lactide)-b-poly(3-(triethoxysilyl)propyl methacrylate) (PEO-b-PLLA-b-PTESPMA) is synthesized with PLLA as the brush morphology-directing component and PTESPMA as the anchoring block. PEO-b-PLLA block copolymer brushes are obtained by chemical grafting of the triblock copolymer single crystals onto a glass surface. The tethering point and overall brush pattern are determined by the single crystal morphology. The grafting density is calculated to be ≈0.36 nm-2 from the atomic force microscopy results and is consistent with the theoretic calculation based on the PLLA crystalline lattice. This work provides a new strategy to synthesize well-defined block copolymer brushes.
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Affiliation(s)
- Shan Mei
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Jeffrey T Wilk
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | | | - Bin Zhao
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37996, USA
| | - Christopher Y Li
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
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9
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Tang Q, Müller M, Li CY, Hu W. Anomalous Ostwald Ripening Enables 2D Polymer Crystals via Fast Evaporation. PHYSICAL REVIEW LETTERS 2019; 123:207801. [PMID: 31809069 DOI: 10.1103/physrevlett.123.207801] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Indexed: 06/10/2023]
Abstract
We demonstrate by molecular simulations that the Ostwald ripening of crystalline polymer nuclei within the fast-evaporation-induced 2D skin layer is retarded at suitable temperatures and evaporation rates. Such an anomalous ripening can be attributed to the interplay between the thermodynamically driven diffusion of noncrystalline fragments toward the growing nuclei and the diffusive current away from the free surface caused by the densification in the nonequilibrium skin layer. The growth orientation of the nuclei inside the skin plane can be adjusted during this anomalous ripening process, which is beneficial for fabricating 2D polymer crystals.
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Affiliation(s)
- Qiyun Tang
- Department of Polymer Science and Engineering, State Key Lab of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
- Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
| | - Marcus Müller
- Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
| | - Christopher Y Li
- Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - Wenbing Hu
- Department of Polymer Science and Engineering, State Key Lab of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
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10
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Mei S, Staub M, Li CY. Directed Nanoparticle Assembly through Polymer Crystallization. Chemistry 2019; 26:349-361. [PMID: 31374132 DOI: 10.1002/chem.201903022] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Indexed: 11/11/2022]
Abstract
Nanoparticles can be assembled into complex structures and architectures by using a variety of methods. In this review, we discuss recent progress of using polymer crystallization (particularly polymer single crystals, PSCs) to direct nanoparticle assembly. PSCs have been extensively studied since 1957. Mainly appearing as quasi-two-dimensional (2D) lamellae, PSCs are typically used as model systems to determine polymer crystalline structures, or as markers to investigate the crystallization process. Recent research has demonstrated that they can also be used as nanoscale functional materials. Herein, we show that nanoparticles can be directed to assemble into complex shapes by using in situ or ex situ polymer crystal growth. End-functionalized polymers can crystallize into 2D nanosheet PSCs, which are used to conjugate with complementary nanoparticles, leading to a nanosandwich structure. These nanosandwiches can find interesting applications for catalysis, surface-enhanced Raman spectroscopy, and nanomotors. Dissolution of the nanosandwich leads to the formation of Janus nanoparticles, providing a unique method for asymmetric nanoparticle synthesis.
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Affiliation(s)
- Shan Mei
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Mark Staub
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Christopher Y Li
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
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11
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Sheng W, Li W, Yu B, Li B, Jordan R, Jia X, Zhou F. Mussel‐Inspired Two‐Dimensional Freestanding Alkyl‐Polydopamine Janus Nanosheets. Angew Chem Int Ed Engl 2019; 58:12018-12022. [DOI: 10.1002/anie.201903527] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/12/2019] [Indexed: 01/09/2023]
Affiliation(s)
- Wenbo Sheng
- State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Tianshui middle road 18 Lanzhou 730000 China
- Chair of Macromolecular ChemistryFaculty of Chemistry and Food ChemistrySchool of ScienceTechnische Universität Dresden Mommsenstraße 4 01069 Dresden Germany
- School of Chemistry and Chemical EngineeringShihezi University 832003 Shihezi China
| | - Wei Li
- Chair of Macromolecular ChemistryFaculty of Chemistry and Food ChemistrySchool of ScienceTechnische Universität Dresden Mommsenstraße 4 01069 Dresden Germany
- School of Chemistry and Chemical EngineeringShihezi University 832003 Shihezi China
| | - Bo Yu
- State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Tianshui middle road 18 Lanzhou 730000 China
| | - Bin Li
- State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Tianshui middle road 18 Lanzhou 730000 China
- Current address: Physik Department, TUM—Technische Universität München James-Franck-Straße 1 85748 Garching Germany
| | - Rainer Jordan
- Chair of Macromolecular ChemistryFaculty of Chemistry and Food ChemistrySchool of ScienceTechnische Universität Dresden Mommsenstraße 4 01069 Dresden Germany
| | - Xin Jia
- School of Chemistry and Chemical EngineeringShihezi University 832003 Shihezi China
| | - Feng Zhou
- State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Tianshui middle road 18 Lanzhou 730000 China
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12
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Sheng W, Li W, Yu B, Li B, Jordan R, Jia X, Zhou F. Mussel‐Inspired Two‐Dimensional Freestanding Alkyl‐Polydopamine Janus Nanosheets. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wenbo Sheng
- State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Tianshui middle road 18 Lanzhou 730000 China
- Chair of Macromolecular ChemistryFaculty of Chemistry and Food ChemistrySchool of ScienceTechnische Universität Dresden Mommsenstraße 4 01069 Dresden Germany
- School of Chemistry and Chemical EngineeringShihezi University 832003 Shihezi China
| | - Wei Li
- Chair of Macromolecular ChemistryFaculty of Chemistry and Food ChemistrySchool of ScienceTechnische Universität Dresden Mommsenstraße 4 01069 Dresden Germany
- School of Chemistry and Chemical EngineeringShihezi University 832003 Shihezi China
| | - Bo Yu
- State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Tianshui middle road 18 Lanzhou 730000 China
| | - Bin Li
- State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Tianshui middle road 18 Lanzhou 730000 China
- Current address: Physik Department, TUM—Technische Universität München James-Franck-Straße 1 85748 Garching Germany
| | - Rainer Jordan
- Chair of Macromolecular ChemistryFaculty of Chemistry and Food ChemistrySchool of ScienceTechnische Universität Dresden Mommsenstraße 4 01069 Dresden Germany
| | - Xin Jia
- School of Chemistry and Chemical EngineeringShihezi University 832003 Shihezi China
| | - Feng Zhou
- State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Tianshui middle road 18 Lanzhou 730000 China
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13
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An Overview of Molecular Packing Mode in Two‐Dimensional Organic Nanomaterials via Supramolecular Assembly. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201800566] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Guan H, Ding T, Zhou W, Wang Z, Zhang J, Cai K. Hexagonal polypyrrole nanosheets from interface driven heterogeneous hybridization and self-assembly for photothermal cancer treatment. Chem Commun (Camb) 2019; 55:4359-4362. [DOI: 10.1039/c9cc00809h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hexagonal-shaped polypyrrole (PPy) nanosheets were fabricated by the generation and anisotropic self-assembly of FeOOH–PPy heterostructures for photothermal cancer treatment.
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Affiliation(s)
- Haidi Guan
- Key Laboratory of Biorheological Science and Technology
- Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
| | - Tao Ding
- Key Laboratory of Biorheological Science and Technology
- Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
| | - Wei Zhou
- Key Laboratory of Biorheological Science and Technology
- Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
| | - Zhenqiang Wang
- Key Laboratory of Biorheological Science and Technology
- Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
| | - Jixi Zhang
- Key Laboratory of Biorheological Science and Technology
- Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology
- Ministry of Education
- College of Bioengineering
- Chongqing University
- Chongqing 400044
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15
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Luo D, Zhang F, Zheng H, Ren Z, Jiang L, Ren Z. Electrostatic-attraction-induced high internal phase emulsion for large-scale synthesis of amphiphilic Janus nanosheets. Chem Commun (Camb) 2019; 55:1318-1321. [DOI: 10.1039/c8cc08892f] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile and scalable method to produce amphiphilic Janus nanosheets in large quantities was reported by interfacial reaction via generating a high internal phase emulsion.
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Affiliation(s)
- Dan Luo
- Department of Physics and TcSUH
- University of Houston
- Houston
- USA
| | - Fanghao Zhang
- Department of Physics and TcSUH
- University of Houston
- Houston
- USA
- Department of Chemistry
| | - Haotian Zheng
- Department of Electrical & Computer Engineering and Materials Science and Engineering Program
- University of Houston
- Houston
- USA
| | - Zhensong Ren
- Department of Physics and TcSUH
- University of Houston
- Houston
- USA
| | - Lili Jiang
- Department of Physics and TcSUH
- University of Houston
- Houston
- USA
| | - Zhifeng Ren
- Department of Physics and TcSUH
- University of Houston
- Houston
- USA
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16
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Affiliation(s)
- Mark C. Staub
- Department of Materials Science and Engineering Drexel University Philadelphia Pennsylvania
| | - Christopher Y. Li
- Department of Materials Science and Engineering Drexel University Philadelphia Pennsylvania
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17
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Wang S, Hong YL, Yuan S, Chen W, Zhou W, Li Z, Wang K, Min X, Konishi T, Miyoshi T. Chain Trajectory, Chain Packing, and Molecular Dynamics of Semicrystalline Polymers as Studied by Solid-State NMR. Polymers (Basel) 2018; 10:E775. [PMID: 30960700 PMCID: PMC6403921 DOI: 10.3390/polym10070775] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 07/13/2018] [Accepted: 07/13/2018] [Indexed: 01/05/2023] Open
Abstract
Chain-level structure of semicrystalline polymers in melt- and solution-grown crystals has been debated over the past half century. Recently, 13C⁻13C double quantum (DQ) Nuclear Magnetic Resonance (NMR) spectroscopy has been successfully applied to investigate chain-folding (CF) structure and packing structure of 13C enriched polymers after solution and melt crystallization. We review recent NMR studies for (i) packing structure, (ii) chain trajectory, (iii) conformation of the folded chains, (iv) nucleation mechanisms, (v) deformation mechanism, and (vi) molecular dynamics of semicrystalline polymers.
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Affiliation(s)
- Shijun Wang
- Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA.
| | - You-Lee Hong
- Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA.
- RIKEN CLST-JEOL Collaboration Center, RIKEN, Yokohama, Kanagawa 230-0045, Japan.
| | - Shichen Yuan
- Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA.
| | - Wei Chen
- Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA.
- State Key Lab of Pollution Control and Resource Reuse Study, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Wenxuan Zhou
- Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA.
| | - Zhen Li
- Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA.
| | - Kun Wang
- Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA.
| | - Xu Min
- School of Physics and Materials Science & Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China.
| | - Takashi Konishi
- Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA.
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan.
| | - Toshikazu Miyoshi
- Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA.
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18
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Agbolaghi S, Abbaspoor S, Abbasi F. A comprehensive review on polymer single crystals—From fundamental concepts to applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2017.11.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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19
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20
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Burks GR, Qi H, Gleeson SE, Mei S, Li CY. Structure and Morphology of Poly(vinylidene fluoride) Nanoscrolls. ACS Macro Lett 2018; 7:75-79. [PMID: 35610920 DOI: 10.1021/acsmacrolett.7b00921] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To date the scrolled morphology of γ-phase poly(vinylidene fluoride) (PVDF) has been witnessed via high temperature melt crystallization of crystalline thin films and through imaging of chemical etched PVDF bulk films. Here we show the first growth and characterization of free-standing γ-phase PVDF scrolls via solution crystallization. Scanning electron microscopy, transmission electron microscopy, and atomic force microscopy have been used to characterize and to further understand the fundamental preferred crystalline habit of the γ-phase of PVDF.
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Affiliation(s)
- Gabriel R. Burks
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Hao Qi
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Sarah E. Gleeson
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Shan Mei
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Christopher Y. Li
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
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21
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Staub MC, Li CY. Confined and Directed Polymer Crystallization at Curved Liquid/Liquid Interface. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700455] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mark C. Staub
- Department of Materials Science and Engineering Drexel University College of Engineering 3141 Chestnut Street Philadelphia PA 19104 USA
| | - Christopher Y. Li
- Department of Materials Science and Engineering Drexel University College of Engineering 3141 Chestnut Street Philadelphia PA 19104 USA
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22
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Wang W, Staub MC, Zhou T, Smith DM, Qi H, Laird ED, Cheng S, Li CY. Polyethylene nano crystalsomes formed at a curved liquid/liquid interface. NANOSCALE 2017; 10:268-276. [PMID: 29210419 DOI: 10.1039/c7nr08106e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Crystallization is incommensurate with nanoscale curved space due to the lack of three dimensional translational symmetry of the latter. Herein, we report the formation of single-crystal-like, nanosized polyethylene (PE) capsules using a miniemulsion solution crystallization method. The miniemulsion was formed at elevated temperatures using PE organic solution as the oil phase and sodium dodecyl sulfate as the surfactant. Subsequently, cooling the system stepwisely for controlled crystallization led to the formation of hollow, nanosized PE crystalline capsules, which are named as crystalsomes since they mimic the classical self-assembled structures such as liposome, polymersome and colloidosome. We show that the formation of the nanosized PE crystalsomes is driven by controlled crystallization at the curved liquid/liquid interface of the miniemulson droplet. The morphology, structure and mechanical properties of the PE crystalsomes were characterized using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and atomic force spectroscopy. Electron diffraction showed the single-crystal-like nature of the crystalsomes. The incommensurateness between the nanocurved interface and the crystalline packing led to reduced crystallinity and crystallite size of the PE crystalsome, as observed from the X-ray diffraction measurements. Moreover, directly quenching the emulsion below the spinodal line led to the formation of hierarchical porous PE crystalsomes due to the coupling of the PE crystallization and liquid/liquid phase separation. We anticipate that this unique crystalsome represents a new type of nanostructure that might be used as nanodrug carriers and ultrasound contrast agents.
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Affiliation(s)
- Wenda Wang
- Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, USA.
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23
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Mei S, Qi H, Zhou T, Li CY. Precisely Assembled Cyclic Gold Nanoparticle Frames by 2D Polymer Single‐Crystal Templating. Angew Chem Int Ed Engl 2017; 56:13645-13649. [DOI: 10.1002/anie.201706180] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Shan Mei
- Department of Materials Science and Engineering Drexel University Philadelphia PA 19104 USA
| | - Hao Qi
- Department of Materials Science and Engineering Drexel University Philadelphia PA 19104 USA
| | - Tian Zhou
- Department of Materials Science and Engineering Drexel University Philadelphia PA 19104 USA
| | - Christopher Y. Li
- Department of Materials Science and Engineering Drexel University Philadelphia PA 19104 USA
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24
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Mei S, Qi H, Zhou T, Li CY. Precisely Assembled Cyclic Gold Nanoparticle Frames by 2D Polymer Single‐Crystal Templating. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706180] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shan Mei
- Department of Materials Science and Engineering Drexel University Philadelphia PA 19104 USA
| | - Hao Qi
- Department of Materials Science and Engineering Drexel University Philadelphia PA 19104 USA
| | - Tian Zhou
- Department of Materials Science and Engineering Drexel University Philadelphia PA 19104 USA
| | - Christopher Y. Li
- Department of Materials Science and Engineering Drexel University Philadelphia PA 19104 USA
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25
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Tong Z, Zhang R, Ma P, Xu H, Chen H, Li Y, Yu W, Zhuo W, Jiang G. Surfactant-Mediated Crystallization-Driven Self-Assembly of Crystalline/Ionic Complexed Block Copolymers in Aqueous Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:176-183. [PMID: 27991788 DOI: 10.1021/acs.langmuir.6b02905] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A series of crystalline/ionic complexed block copolymers (BCPs) with various compositions have been prepared by sequential reactions. The BCPs with different hydrophilic fractions can self-assemble into various morphologies, such as spindlelike, rodlike, and spherical micelles with different crystallinity of the core. Bis(2-ethylhexyl) sulfosuccinate sodium salt (AOT) is added as a surfactant to induce the morphological transition of BCPs in aqueous media. The introduced AOT can be tightly bound to the cationic units, and a water-insoluble unit in the corona forms, leading to a reduced tethering density. Consequently, morphological variety changing from rods to platelets to fibril to dendrite-like micelles can be observed.
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Affiliation(s)
- Zaizai Tong
- College of Materials and Textiles, Zhejiang Sci-Tech University , Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education , Hangzhou 310018, P. R. China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, P. R. China
| | - Runke Zhang
- College of Materials and Textiles, Zhejiang Sci-Tech University , Hangzhou 310018, P. R. China
| | - Pianpian Ma
- College of Materials and Textiles, Zhejiang Sci-Tech University , Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education , Hangzhou 310018, P. R. China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, P. R. China
| | - Haian Xu
- College of Materials and Textiles, Zhejiang Sci-Tech University , Hangzhou 310018, P. R. China
| | - Hua Chen
- College of Materials and Textiles, Zhejiang Sci-Tech University , Hangzhou 310018, P. R. China
| | - Yanming Li
- College of Materials and Textiles, Zhejiang Sci-Tech University , Hangzhou 310018, P. R. China
| | - Weijiang Yu
- College of Materials and Textiles, Zhejiang Sci-Tech University , Hangzhou 310018, P. R. China
| | - Wangqian Zhuo
- College of Materials and Textiles, Zhejiang Sci-Tech University , Hangzhou 310018, P. R. China
| | - Guohua Jiang
- College of Materials and Textiles, Zhejiang Sci-Tech University , Hangzhou 310018, P. R. China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education , Hangzhou 310018, P. R. China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, P. R. China
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26
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Zhang J, Zheng X, Wu F, Yan B, Zhou S, Qu S, Weng J. Shape Memory Actuation of Janus Nanoparticles with Amphipathic Cross-Linked Network. ACS Macro Lett 2016; 5:1317-1321. [PMID: 35651214 DOI: 10.1021/acsmacrolett.6b00730] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Preparation of nanoscale Janus particles that can respond to external stimulation and, at the same time, be prepared using an easily achievable method presents a significant challenge. Here, we have demonstrated the shape memory of Janus nanoparticles (SMJNPs) with a multifunctional combination of Janus nanostructure and a shape memory effect, composed of a well-defined amphipathic sucrose-poly(ε-caprolactone) cross-linked network. A sudden negative pressure method was first used to prepare the Janus-shaped nanoparticles (temporary shape), which can switch their shape and wettability. The Janus-shaped nanoparticle is an amphipathic structure composed of hydrophilic and hydrophobic parts. Moreover, in response to temperature, the nanoparticle can recover their nanosphere state via a shape memory process. The novel Janus nanoparticles with the shape memory property also show a great potential for application such as drug delivery.
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Affiliation(s)
- Jinlong Zhang
- School of Materials Science
and Engineering, Key Laboratory of Advanced Technologies of Materials,
Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
| | - Xiaotong Zheng
- School of Materials Science
and Engineering, Key Laboratory of Advanced Technologies of Materials,
Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
| | - Fengluan Wu
- School of Materials Science
and Engineering, Key Laboratory of Advanced Technologies of Materials,
Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
| | - Bingyun Yan
- School of Materials Science
and Engineering, Key Laboratory of Advanced Technologies of Materials,
Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
| | - Shaobing Zhou
- School of Materials Science
and Engineering, Key Laboratory of Advanced Technologies of Materials,
Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
| | - Shuxin Qu
- School of Materials Science
and Engineering, Key Laboratory of Advanced Technologies of Materials,
Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
| | - Jie Weng
- School of Materials Science
and Engineering, Key Laboratory of Advanced Technologies of Materials,
Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
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27
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Tong Z, Li Y, Xu H, Chen H, Yu W, Zhuo W, Zhang R, Jiang G. Corona Liquid Crystalline Order Helps to Form Single Crystals When Self-Assembly Takes Place in the Crystalline/Liquid Crystalline Block Copolymers. ACS Macro Lett 2016; 5:867-872. [PMID: 35614760 DOI: 10.1021/acsmacrolett.6b00428] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Crystalline/ionic liquid crystalline block copolymers (BCPs) with various compositions have been successfully prepared by sequential reactions. The effect of corona liquid crystalline order on self-assembly of BCPs in selective solvent is investigated in detail. It is found that two-dimensional single crystals with well-developed shapes are formed when the liquid crystalline order is present. By contrast, ill-developed platelets with small size or one-dimensional worm-like micelles are assembled if the liquid crystalline order of the corona segments is lost. It is speculated that the preferred parallel arrangement of liquid crystalline block enables it to expose more growth front of crystals. Accordingly, epitaxial crystallization will proceed readily, leading to fabrication of the well-defined single crystals.
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Affiliation(s)
- Zaizai Tong
- Department
of Materials Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, P. R. China
- Key
Laboratory of Advanced Textile Materials and Manufacturing Technology
(ATMT), Ministry of Education, Hangzhou 310018, P. R. China
| | - Yanming Li
- Department
of Materials Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Haian Xu
- Department
of Materials Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Hua Chen
- Department
of Materials Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Weijiang Yu
- Department
of Materials Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Wangqian Zhuo
- Department
of Materials Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Runke Zhang
- Department
of Materials Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Guohua Jiang
- Department
of Materials Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, P. R. China
- Key
Laboratory of Advanced Textile Materials and Manufacturing Technology
(ATMT), Ministry of Education, Hangzhou 310018, P. R. China
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28
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Qi H, Zhou T, Mei S, Chen X, Li CY. Responsive Shape Change of Sub-5 nm Thin, Janus Polymer Nanoplates. ACS Macro Lett 2016; 5:651-655. [PMID: 35614666 DOI: 10.1021/acsmacrolett.6b00251] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Responsive shape changes in soft materials have attracted significant attention in recent years. Despite extensive studies, it is still challenging to prepare nanoscale assemblies with responsive behaviors. Herein we report on the fabrication and pH-responsive properties of sub-5 nm thin, Janus polymer nanoplates prepared via crystallization-driven self-assembly of poly(ε-caprolactone)-b-poly(acrylic acid) (PCL-b-PAA) followed by cross-linking and disassembly. The resultant Janus nanoplate is comprised of partially cross-linked PAA and tethered PCL brush layers with an overall thickness of ∼4 nm. We show that pronounced and reversible shape changes from nanoplates to nanobowls can be realized in such a thin free-standing film. This shape change is achieved by exceptionally small stress-a few orders of magnitude smaller than conventional hydrogel bilayers. These three-dimensional ultrathin nanobowls are also mechanically stable, which is attributed to the tortoise-shell-like crystalline domains formed in the nanoconfined curved space. Our results pave a way to a new class of free-standing, ultrathin polymer Janus nanoplates that may find applications in nanomotors and nanoactuators.
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Affiliation(s)
- Hao Qi
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Tian Zhou
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Shan Mei
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Xi Chen
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Christopher Y. Li
- Department of Materials Science
and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
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29
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Hong YL, Chen W, Yuan S, Kang J, Miyoshi T. Chain Trajectory of Semicrystalline Polymers As Revealed by Solid-State NMR Spectroscopy. ACS Macro Lett 2016; 5:355-358. [PMID: 35614717 DOI: 10.1021/acsmacrolett.6b00040] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Over the last half century, a chain-folding structure of semicrystalline polymers has been debated in polymer science. Recently, 13C-13C double quantum (DQ) NMR spectroscopy combined with 13C selective isotope labeling has been developed to investigate re-entrance sites of the folded chains, mean values of adjacent re-entry number ⟨n⟩ and fraction ⟨F⟩ of semicrystalline polymers. This viewpoint highlights the versatile approaches of using solid-state (ss) NMR and isotope labeling for revealing (i) chain trajectory in melt- and solution-grown crystals, (ii) conformation of the folded chains in single crystals, (iii) self-folding in the early stage of crystallization, and (iv) unfolding of the folded chains under stretching.
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Affiliation(s)
- You-lee Hong
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Wei Chen
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Shichen Yuan
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Jia Kang
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Toshikazu Miyoshi
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, United States
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30
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31
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Liang G, Zheng L, Bao S, Fei B, Gao H, Zhu F, Wu Q. Growing Tiny Flowers of Organometallic Polymers along Carbon Nanotubes. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00732] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guodong Liang
- DSAP,
PCFM and GDHPPC Lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Limin Zheng
- DSAP,
PCFM and GDHPPC Lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Suping Bao
- DSAP,
PCFM and GDHPPC Lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Bin Fei
- Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Haiyang Gao
- DSAP,
PCFM and GDHPPC Lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Fangming Zhu
- DSAP,
PCFM and GDHPPC Lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Qing Wu
- DSAP,
PCFM and GDHPPC Lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
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32
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Wu J, Weng LT, Qin W, Liang G, Tang BZ. Crystallization-Induced Redox-Active Nanoribbons of Organometallic Polymers. ACS Macro Lett 2015; 4:593-597. [PMID: 35596298 DOI: 10.1021/acsmacrolett.5b00180] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Polymer/inorganic functional nanostructures are essential for the fabrication of high-performance nanodevices in the future. The synthesis of hybrid nanostructures is hindered by complicated synthetic protocols or harsh conditions. Herein, we report a facile and scalable method for the synthesis of organometallic polymer nanoribbons through crystallization of polymers capped with a ferrate complex. Nanoribbons consisted of a single crystalline polymer lamella coated with a redox-active ferrate complex on both sides. The nanoribbons had a width of approximately 70 nm and a thickness of 10 nm. With the merit of highly ordered crystalline structures of polymers and functional coating layers, as well as a highly anisotropic nature, the nanoribbons are useful in nanodevices and biosensors.
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Affiliation(s)
- Jialong Wu
- DSAP,
PCFM and GDHPPC lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Lu-Tao Weng
- Materials
Characterization and Preparation Facility, Department of Chemical
and Biomolecular Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Wei Qin
- HKUST-Shenzhen Research
Institute, No. 9 Yuexing first RD,
South Area, Hi-tech Park, Nanshan, Shenzhen, China 518057
| | - Guodong Liang
- DSAP,
PCFM and GDHPPC lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Ben Zhong Tang
- HKUST-Shenzhen Research
Institute, No. 9 Yuexing first RD,
South Area, Hi-tech Park, Nanshan, Shenzhen, China 518057
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33
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Cai Q, Bao S, Zhao Y, Zhao T, Xiao L, Gao G, Chokto H, Dong A. Tailored synthesis of amine N-halamine copolymerized polystyrene with capability of killing bacteria. J Colloid Interface Sci 2015; 444:1-9. [DOI: 10.1016/j.jcis.2014.12.062] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 12/06/2014] [Accepted: 12/08/2014] [Indexed: 12/01/2022]
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34
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Przybyłek M, Cysewski P, Pawelec M, Ziółkowska D, Kobierski M. On the origin of surface imposed anisotropic growth of salicylic and acetylsalicylic acids crystals during droplet evaporation. J Mol Model 2015; 21:49. [PMID: 25690367 PMCID: PMC4333231 DOI: 10.1007/s00894-015-2599-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 01/26/2015] [Indexed: 11/30/2022]
Abstract
In this paper droplet evaporative crystallization of salicylic acid (SA) and acetylsalicylic acid (ASA) crystals on different surfaces, such as glass, polyvinyl alcohol (PVA), and paraffin was studied. The obtained crystals were analyzed using powder X-ray diffraction (PXRD) technique. In order to better understand the effect of the surface on evaporative crystallization, crystals deposited on glass were scraped off. Moreover, evaporative crystallization of a large volume of solution was performed. As we found, paraffin which is non-polar surface promotes formation of crystals morphologically similar to those obtained via bulk evaporative crystallization. On the other hand, when crystallization is carried out on the polar surfaces (glass and PVA), there is a significant orientation effect. This phenomenon is manifested by the reduction of the number of peaks in PXRD spectrum recorded for deposited on the surface crystals. Noteworthy, reduction of PXRD signals is not observed for powder samples obtained after scraping crystals off the glass. In order to explain the mechanism of carboxylic crystals growth on the polar surfaces, quantum-chemical computations were performed. It has been found that crystal faces of the strongest orientation effect can be characterized by the highest surface densities of intermolecular interactions energy (IIE). In case of SA and ASA crystals formed on the polar surfaces the most dominant faces are characterized by the highest adhesive and cohesive properties. This suggests that the selection rules of the orientation effect comes directly from surface IIE densities.
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Affiliation(s)
- Maciej Przybyłek
- Department of Physical Chemistry, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950, Bydgoszcz, Poland,
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35
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Wang W, Huang Z, Laird ED, Wang S, Li CY. Single-walled carbon nanotube nanoring induces polymer crystallization at liquid/liquid interface. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.12.063] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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36
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Cheng S, Smith DM, Pan Q, Wang S, Li CY. Anisotropic ion transport in nanostructured solid polymer electrolytes. RSC Adv 2015. [DOI: 10.1039/c5ra05240h] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We discuss recent progresses on anisotropic ion transport in solid polymer electrolytes.
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Affiliation(s)
- Shan Cheng
- Department of Materials Science and Engineering
- Drexel University
- Philadelphia
- USA
| | - Derrick M. Smith
- Department of Materials Science and Engineering
- Drexel University
- Philadelphia
- USA
| | - Qiwei Pan
- Department of Materials Science and Engineering
- Drexel University
- Philadelphia
- USA
- Department of Materials Science and Engineering
| | - Shijun Wang
- Department of Materials Science and Engineering
- Drexel University
- Philadelphia
- USA
| | - Christopher Y. Li
- Department of Materials Science and Engineering
- Drexel University
- Philadelphia
- USA
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37
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Liang G, Li X, Bao S, Gao H, Zhu F, Wu Q. Large-scale synthesis of organometallic polymer flowers with ultrathin petals for hydrogen peroxide sensing. Polym Chem 2015. [DOI: 10.1039/c5py00382b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile and efficient approach for large-scale synthesis of organometallic polymer flowers with ultrathin petals has been developed.
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Affiliation(s)
- Guodong Liang
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Xiaodong Li
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Suping Bao
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Haiyang Gao
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Fangming Zhu
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
| | - Qing Wu
- DSAP lab
- PCFM lab
- GDHPPC lab
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
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Affiliation(s)
- Tian Zhou
- Department of Materials Science and Engineering; Drexel University; Philadelphia Pennsylvania 19104
| | - Bin Dong
- Institute of Functional Nano & Soft Materials (FUNSOM); Soochow University; Suzhou Jiangsu 215123 China
| | - Hao Qi
- Department of Materials Science and Engineering; Drexel University; Philadelphia Pennsylvania 19104
| | - Shan Mei
- Department of Materials Science and Engineering; Drexel University; Philadelphia Pennsylvania 19104
| | - Christopher Y. Li
- Department of Materials Science and Engineering; Drexel University; Philadelphia Pennsylvania 19104
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