Hierarchically Self-Assembled Amphiphilic Alternating Copolymer Brush   Containing Side-Chain Cholesteryl Units

doi:10.1021/acs.macromol.6b01043

CORC > 北京大学 > 化学与分子工程学院

	Hierarchically Self-Assembled Amphiphilic Alternating Copolymer Brush Containing Side-Chain Cholesteryl Units
	Ping, Jing ; Gu, Kehua ; Zhou, Sheng ; Pan, Hongbing ; Shen, Zhihao ; Fan, Xing-He
刊名	MACROMOLECULES
	2016
关键词	BLOCK-COPOLYMERS MICROPHASE SEPARATION DIBLOCK COPOLYMERS IONIC-CONDUCTIVITY PHOTONIC CRYSTALS ORDER-DISORDER PHASE-BEHAVIOR POLYMERS MICROSTRUCTURE POLYMERIZATION
DOI	10.1021/acs.macromol.6b01043
英文摘要	We synthesized a novel amphiphilic alternating copolymer brush (AACPB), poly{maleimide-g-poly[10-(cholesteryloxycarbonyl) decyl methacrylate]}-alt-(styrene-g-poly(ethylene oxide)) (P (MI-g-PCholMA)-alt-(St-g-PEO)), by copolymerization of maleimide-terminated poly[10-(cholesteryloxycarbonyl)decyl methacrylate] (MI-PCholMA) and styrene-terminated poly(ethylene oxide) (St-PEO). The thermal properties of the polymer brushes were investigated by thermogravimetric analysis and differential scanning calorimetry. After solvent and thermal annealing, the AACPB self-assembles into a hierarchically ordered nanostructure. One is the microphase-separated lamellar nanostructure with a 9.66 run scale. The other is the cholesteryl double-layer smectic A phase (SmA(d)) with a 5.46 nm scale. The order-disorder transition of the AACPB is associated with the SmA(d)-isotropic transition. It is the first report on the microphase separation of AACPBs. We can construct ordered nanostructures with a sub -10 nm length scale with AACPBs. After the doping of 0.2 equiv of LiCF3SO3, the d-spacing of the lamellar structure formed by the PCholMA(8)-alt-PEO23/LiCF3SO3 complex increases because the interaction between Li+ and oxygen atom makes the PEO chains more stretched. Such a structure offers lithium salt-doped PEO nanochannels which can act as pathways for the transport of lithium ion.; National Natural Science Foundation of China [21134001, 21374002]; Beijing Natural Science Foundation [2142016]; SCI(E); EI; ARTICLE; zshen@pku.edu.cn; fanxh@pku.edu.cn; 16; 5993-6000; 49
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/491549]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Ping, Jing,Gu, Kehua,Zhou, Sheng,et al. Hierarchically Self-Assembled Amphiphilic Alternating Copolymer Brush Containing Side-Chain Cholesteryl Units[J]. MACROMOLECULES,2016.
APA	Ping, Jing,Gu, Kehua,Zhou, Sheng,Pan, Hongbing,Shen, Zhihao,&Fan, Xing-He.(2016).Hierarchically Self-Assembled Amphiphilic Alternating Copolymer Brush Containing Side-Chain Cholesteryl Units.MACROMOLECULES.
MLA	Ping, Jing,et al."Hierarchically Self-Assembled Amphiphilic Alternating Copolymer Brush Containing Side-Chain Cholesteryl Units".MACROMOLECULES (2016).