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Chernozem RV, Pariy IO, Pryadko A, Bonartsev AP, Voinova VV, Zhuikov VA, Makhina TK, Bonartseva GA, Shaitan KV, Shvartsman VV, Lupascu DC, Romanyuk KN, Kholkin AL, Surmenev RA, Surmeneva MA. A comprehensive study of the structure and piezoelectric response of biodegradable polyhydroxybutyrate-based films for tissue engineering applications. Polym J 2022. [DOI: 10.1038/s41428-022-00662-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Li B, Zhao Y, Chen X, Wang Z, Xu J, Shi W. Polymer Crystallization with Configurable Birefringence in Double Emulsion Droplets. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00482] [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]
Affiliation(s)
- Baihui Li
- Key Laboratory of Functional Polymer Materials of Ministry of Education; Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yue Zhao
- Key Laboratory of Functional Polymer Materials of Ministry of Education; Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiaotong Chen
- Key Laboratory of Functional Polymer Materials of Ministry of Education; Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhiqi Wang
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Jun Xu
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Weichao Shi
- Key Laboratory of Functional Polymer Materials of Ministry of Education; Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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Wang X, Yang C, Song P, Li M, Liu Y, Sun H, Liu Y, Zheng H, Huang J, Zhu H. Ionic surfactants as assembly crosslinkers triggered supramolecular membrane with 2D↔3D conversion under multiple stimulus. J Colloid Interface Sci 2021; 609:627-636. [PMID: 34844735 DOI: 10.1016/j.jcis.2021.11.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 11/17/2022]
Abstract
HYPOTHESIS General strategies leading to 2D assemblies promise a significant step forward in the development of supramolecular materials with diversity and superiority. Considering molecular packing parameter indicates a connection between molecular geometry and aggregate morphology, we predict the introduction of ionic surfactants as assembly crosslinker would be endowed to develop a methodology of 2D supramolecular assembles. EXPERIMENTS In this work, by introducing ionic surfactants such as sodium dodecylsulfate (SDS), the molecular packing parameter P in bolaamphiphile (A2G) system was increased, which successfully manipulated the transformation of the 3D vesicles into 2D membranes. This 2D membranes further showed excellent light and enzyme response, and thus 2D to 3D morphological conversion can be rationally controlled via UV/Vis light irradiation and alternate addition of β-CD and α-amylase. Significantly, the 2D feature revealed not only a remarkable fluorescence enhancement to luminescent molecules but also the ability to effectively remove pollutants from water through filtration. FINDINGS We report a general and facile strategy for the construction of 2D supramolecular membranes, initiated by introducing ionic surfactants as assembly crosslinker to increase P. In the existence of stimulus response factors, 2D↔3D morphological conversion can be further controlled in a flexible manner, which opens up a new paradigm leading to interconvertible supramolecular materials.
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Affiliation(s)
- Xuejiao Wang
- Fujian Provincial University Engineering Research Center of Industrial Biocatalysis, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, PR China; Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
| | - Chunlian Yang
- Fujian Provincial University Engineering Research Center of Industrial Biocatalysis, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, PR China
| | - Pengbo Song
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
| | - Maodong Li
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, PR China
| | - Yuxin Liu
- Department of Biomolecular System, Max-Planck Institute for Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Hao Sun
- Fujian Provincial University Engineering Research Center of Industrial Biocatalysis, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, PR China
| | - Yuting Liu
- Fujian Provincial University Engineering Research Center of Industrial Biocatalysis, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, PR China
| | - Hang Zheng
- Fujian Provincial University Engineering Research Center of Industrial Biocatalysis, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, PR China
| | - Jianbin Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
| | - Hu Zhu
- Fujian Provincial University Engineering Research Center of Industrial Biocatalysis, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, PR China.
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Jasiurkowska-Delaporte M, Juszyńska-Gałązka E, Sas W, Zieliński PM, Baranowska-Korczyc A. Soft versus hard confinement effects on the phase transitions, and intra- and inter- molecular dynamics of 6BT liquid crystal constrained in electrospun polymer fibers and in nanopores. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115817] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Hasan N, Busse K, Haider T, Wurm FR, Kressler J. Crystallization of Poly(ethylene)s with Regular Phosphoester Defects Studied at the Air-Water Interface. Polymers (Basel) 2020; 12:E2408. [PMID: 33086637 PMCID: PMC7650800 DOI: 10.3390/polym12102408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 11/16/2022] Open
Abstract
Poly(ethylene) (PE) is a commonly used semi-crystalline polymer which, due to the lack of polar groups in the repeating unit, is not able to form Langmuir or Langmuir-Blodgett (LB) films. This problem can be solved using PEs with hydrophilic groups arranged at regular distances within the polymer backbone. With acyclic diene metathesis (ADMET) polymerization, a tool for precise addition of polar groups after a certain interval of methylene sequence is available. In this study, we demonstrate the formation of Langmuir/LB films from two different PEs with regular phosphoester groups, acting as crystallization defects in the main chain. After spreading the polymers from chloroform solution on the water surface of a Langmuir trough and solvent evaporation, the surface pressure is recorded during compression under isothermal condition. These π-A isotherms, surface pressure π vs. mean area per repeat unit A, show a plateau zone at surface pressures of ~ (6 to 8) mN/m, attributed to the formation of crystalline domains of the PEs as confirmed by Brewster angle and epifluorescence microscopy. PE with ethoxy phosphoester defects (Ethoxy-PPE) forms circular shape domains, whereas Methyl-PPE-co-decadiene with methyl phosphoester defects and two different methylene sequences between the defects exhibits a film-like morphology. The domains/films are examined by atomic force microscopy after transferring them to a solid support. The thickness of the domains/films is found in the range from ~ (2.4 to 3.2) nm depending on the transfer pressure. A necessity of chain tilt in the crystalline domains is also confirmed. Grazing incidence X-ray scattering measurements in LB films show a single Bragg reflection at a scattering vector qxy position of ~ 15.1 nm-1 known from crystalline PE samples.
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Affiliation(s)
- Nazmul Hasan
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle, Germany; (N.H.); (K.B.)
| | - Karsten Busse
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle, Germany; (N.H.); (K.B.)
| | - Tobias Haider
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany;
| | - Frederik R. Wurm
- Sustainable Polymer Chemistry Group, MESA+ Institute for Nanotechnology, Faculty of Science and Technology, Universiteit Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands;
| | - Jörg Kressler
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle, Germany; (N.H.); (K.B.)
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Anbukarasu P, Sauvageau D, Elias AL. Enzymatic degradation of dimensionally constrained polyhydroxybutyrate films. Phys Chem Chem Phys 2018; 19:30021-30030. [PMID: 29094122 DOI: 10.1039/c7cp05133f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The effect of dimensional constraint, imparted by a variation in film thickness, on the enzymatic degradation of polyhydroxybutyrate (PHB) is reported. The characterization of the crystalline structure and the surface topography of solvent-cast PHB thin films revealed strong correlations between film thickness and both crystallinity and crystal anisotropy, with the polymer film becoming more amorphous with decreasing thickness. The enzymatic degradation of the PHB films was characterized using a high precision diffraction metrology, which enabled the visualization of small variations in the degradation behavior. The results show that the degradation rate increases with decreasing thickness due to the corresponding decrease in crystallinity. However, in a nanoscopic ultra-thin PHB specimen, produced by μ-transfer molding, enzymatic degradation was impeded. The enzymatic degradation rate of the PHB films therefore was found to exhibit a discontinuous trend with respect to film thickness: initially increasing as film thickness was reduced, and then decreasing dramatically once the thickness was reduced to tens of nanometers. In this regime, enzymatic degradation was hindered by the absence of crystalline regions in the films. These results show that a nano-dimensional constraint on PHB films can result in specimens with a tunable response to extracellular enzymes.
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Affiliation(s)
- Preetam Anbukarasu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada.
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Wu Z, Xue R, Xie M, Wang X, Liu Z, Drechsler M, Huang J, Yan Y. Self-Assembly-Triggered Cis-to-Trans Conversion of Azobenzene Compounds. J Phys Chem Lett 2018; 9:163-169. [PMID: 29266959 DOI: 10.1021/acs.jpclett.7b03060] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Cis-to-trans transition of azobenzene compounds usually occurs under appropriate light irradiation or slow thermal relaxation, and one can hardly obtain complete cis-to-trans transition of azos due to the overlap of the n-π* transition of the trans and the cis isomers. We show that by viewing the photostationary state as a chemical equilibrium between the cis and trans isomers, triggered self-assembly of the trans isomers can promote the cis-to-trans transition, and trans azos with spectrum-grade purity can even be achieved using an elegantly designed coordinating azo. This work establishes a new paradigm for manipulating the cis-to-trans transition of azo compounds, which may inspire designs for various azo-based advanced materials.
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Affiliation(s)
- Zheng Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Rongrong Xue
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Mengqi Xie
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Xuejiao Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Zihao Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Markus Drechsler
- Bavarian Polymer Institute (BPI), Key Lab of Electron and Optical Microscopy, University of Bayreuth , Universitaetsstr. 30, D-95440 Bayreuth, Germany
| | - Jianbin Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Yun Yan
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
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Kossack W, Schulz M, Thurn-Albrecht T, Reinmuth J, Skokow V, Kremer F. Temperature-dependent IR-transition moment orientational analysis applied to thin supported films of poly-ε-caprolactone. SOFT MATTER 2017; 13:9211-9219. [PMID: 29188852 DOI: 10.1039/c7sm01988b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel experimental setup is described which enables one to carry out infrared transition moment orientational analysis (IR-TMOA) depending on temperature. By this, three dimensional molecular order parameter tensors of IR-active transition dipole moments with respect to the sample coordinate system can be determined in their thermal evolution (35 °C < T < 59 °C). As an example crystallinity and macroscopic order of poly-ε-caprolcatone are monitored. Both remain largely unaltered up to T ∼ 50 °C, above which they decrease. These reductions are explained as the melting of flat-on crystalline lamellae that make up about 34% of the crystalline material. The remaining crystallites are arranged into bulk-like, confined spherulitic structures and do not melt by more than (3 ± 3)%. Therefore, flat-on oriented lamellae are supposed to be kinetically favored by confinement during melt crystallization but are thermodynamically less stable than two-dimensionally confined bulk-like spherulites.
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Affiliation(s)
- Wilhelm Kossack
- Molecular Physics department, Peter Debye Institut für weiche Materie, University Leipzig, Linnéstraße 5, 04103 Leipzig, Germany.
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Kossack W, Seidlitz A, Thurn-Albrecht T, Kremer F. Molecular Order in Cold Drawn, Strain-Recrystallized Poly(ε-caprolactone). Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02714] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wilhelm Kossack
- Fakultät
für Physik und Geowissenschaften, Universität Leipzig, Linnéstr. 5, 04103 Leipzig, Germany
| | - Anne Seidlitz
- Institut
für Physik, FG Experimentelle Polymerphysik, Martin-Luther-Universität Halle-Wittenberg, 06120 Halle/Saale, Germany
| | - Thomas Thurn-Albrecht
- Institut
für Physik, FG Experimentelle Polymerphysik, Martin-Luther-Universität Halle-Wittenberg, 06120 Halle/Saale, Germany
| | - Friedrich Kremer
- Fakultät
für Physik und Geowissenschaften, Universität Leipzig, Linnéstr. 5, 04103 Leipzig, Germany
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