Flexible Material Based on Poly(lactic acid) and Liquid Crystal with Multishape Memory Effects
| Autor: | Fei Song, Xiu-Li Wang, Mao-Qin Li, Li Chen, Yu-Zhong Wang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Biphenyl Materials science Renewable Energy Sustainability and the Environment General Chemical Engineering 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Lactic acid law.invention chemistry.chemical_compound chemistry Chemical engineering Liquid crystal law Polymer chemistry Copolymer Environmental Chemistry Crystallization 0210 nano-technology Phenylsuccinate |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 4:3820-3829 |
| ISSN: | 2168-0485 |
| DOI: | 10.1021/acssuschemeng.6b00582 |
| Popis: | Construction of novel multishape memory materials from biobased polymers is of particular interest in recent years. Herein, a series of linear poly(lactic acid) (PLA)-based copolymers containing a smectic liquid crystal in the main-chain are designed and synthesized, of which the molecular structures are confirmed by NMR and GPC analyses. By introducing the liquid crystal, poly[4,4′-bis(6-hydroxyhexyloxy) biphenyl phenylsuccinate] (PBDPS), the brittleness of PLA is overcome, and flexible materials are successfully prepared. Relying on the crystallization of PLA as well as the π–π interaction that originated from PBDPS, the copolymers exhibit excellent thermoinduced triple- and quadruple-shape memory behaviors with high shape fixation and recovery ratios. Taking advantage of these features, the multishape memory polymers can bring more chances for versatile applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|