Thermotropic liquid crystal behavior on PBLG-PDMS-PBLG triblock copolymers
| Autor: | Eric Papon, Emmanuel Ibarboure, Juan Rodríguez-Hernández |
|---|---|
| Přispěvatelé: | Laboratoire de Chimie des polymères organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Université Sciences et Technologies - Bordeaux 1-Institut de Chimie du CNRS (INC), Team 1 LCPO : Polymerization Catalyses & Engineering, Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC) |
| Rok vydání: | 2006 |
| Předmět: |
polypeptide
Materials science genetic structures rodlike Polymers and Plastics POLY(GAMMA-BENZYL L-GLUTAMATE) hexagonal 02 engineering and technology 010402 general chemistry 01 natural sciences Thermotropic crystal Light scattering chemistry.chemical_compound Differential scanning calorimetry Liquid crystal Polymer chemistry Materials Chemistry Copolymer triblock copolymers liquid crystal N-CARBOXYANHYDRIDES Polydimethylsiloxane POLYPEPTIDES Organic Chemistry self-assembly Dynamic mechanical analysis 021001 nanoscience & nanotechnology 0104 chemical sciences BLOCK-COPOLYMERS [CHIM.POLY]Chemical Sciences/Polymers Chemical engineering chemistry Self-assembly nematic 0210 nano-technology |
| Zdroj: | Journal of Polymer Science Part A: Polymer Chemistry Journal of Polymer Science Part A: Polymer Chemistry, Wiley, 2006, 44 (15), pp.4668-4679. ⟨10.1002/pola.21559⟩ |
| ISSN: | 1099-0518 0887-624X |
| DOI: | 10.1002/pola.21559 |
| Popis: | In this contribution, the preparation of rod-coil-rod triblock copolymers based on polydimethylsiloxane and polypeptide [poly(γ-benzyl-L-glutamate)] is reported. Firstly, self-assembly in rod-like structures was demonstrated via polarized optical microscopy and small-angle light scattering. Further structuration details were obtained using X-ray scattering and AFM imaging to establish the formation of a double-hexagonal structure and to accurately define the morphological dimensions of the rodlike structures. The thermal behavior of these structures was investigated using dynamic mechanical analysis and differential scanning calorimetry. We conclude by addressing an unexpected reversible thermal transition within the 130–150 °C temperature range and the ensuing associated organizational modifications. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 4668–4679, 2006 |
| Databáze: | OpenAIRE |
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