Synthesis and self-assembly of poly-(diethylhexyloxy-p-phenylenevinylene)- b-poly(methyl methacrylate) rod - coil block copolymers

作     者：Ho, Chun-Chih Lee, Yi-Huan Dai, Chi-An Segalman, Rachel A. Su, Wei-Fang 

作者机构：Department of Materials Science and Engineering National Taiwan University Taipei 106 Taiwan Institute of Polymer Science and Engineering National Taiwan University Taipei 106 Taiwan Department of Chemical Engineering University of California Berkeley United States Materials Sciences Division Lawrence Berkeley National Laboratories Berkeley CA 94720 United States 

出 版 物：《Macromolecules》 (Macromolecules)

年 卷 期：2009年第42卷第12期

页      面：4208-4219页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070303[理学-有机化学] 0703[理学-化学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：High resolution transmission electron microscopy 

摘      要：A series of poly(diethylhexyloxy-p-phenylenevinylene-b-methyl methacrylate) (DEH-PPV-b-PMMA) polymers with narrow polydispersity (PDI 1H nuclear magnetic resonance (1H NMR) and gel permeation chromatography (GPC). Transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS) studies reveal the details of copolymer morphology. The DEH-PPV-b-PMM A system presented here has higher block segregation strength than many previously studied rod - coil block copolymers yet still shows experimentally accessible phase transitions with respect to temperature. As a result, this molecule offers new insight into the competition between rod - rod and rod - coil interactions that occurs in the system. The DEH-PPV rods are organized as a monolayer that is inclined with the lamellar normal (smectic C) for the copolymers containing low volume fraction of PMMA coil (