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Crystallization assisted microphase separation in all-conjugated phenylene-thiophene diblock copolymers
Yang H(杨华); Yang, H; Zhang, R; Wang, L; Zhang, JD; Yu, XH; Geng, YH; Han, YC
2016
发表期刊POLYMER
卷号97页码:238-246
摘要We demonstrated the crystallization assisted microphase separation of all-conjugated diblock copolymers poly (2,5-dihexyloxy-p-phenylene)-block-(3-hexylthiophene) (PPP-b-P3HT, denoted as BmTn). The crystallization and microphase separation are summarized in terms of the difference of aggregation in solvent and the crystallization temperatures of two blocks, respectively. B39T18 and B41T44 were selected, and crystalline nanowires were formed for B39T18 cast from non-selective solvent via the crystallization of PPP block overwhelming P3HT block. However, both microphase separation and crystallization occurred from selective solvent for PPP block, due to the enhanced aggregation of P3HT block governed by solvophobic interactions. The morphological evolution of B41T44 with equivalent crystallization capacity displayed an opposite result. The lamellar nanostructures formed in films were cast from non-selective solvent and the crystallization breakout microphase separation was formed from selective solvent. Besides, the evolution and phase transition in the thermal annealing process indicated that the PPP crystallized confined from the molten in the P3HT crystalline region, and then the P3HT breakout crystallized primarily and microphase separation with the molten PPP occurred. (C) 2016 Elsevier Ltd. All rights reserved.
文章类型Article
关键词All-conjugated diblock copolymer Microphase separation Breakout crystallize Solvophobic interactions
学科领域Polymer Science
DOI10.1016/j.polymer.2016.05.037
关键词[WOS]HETEROJUNCTION SOLAR-CELLS ; ACCEPTOR BLOCK-COPOLYMERS ; ROD-COIL ; MORPHOLOGY ; POLY(3-HEXYLTHIOPHENE) ; BEHAVIOR
收录类别SCI ; EI
语种英语
WOS类目Polymer Science
WOS记录号WOS:000379676400026
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260187
专题东莞分部
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Yang H,Yang, H,Zhang, R,et al. Crystallization assisted microphase separation in all-conjugated phenylene-thiophene diblock copolymers[J]. POLYMER,2016,97:238-246.
APA 杨华.,Yang, H.,Zhang, R.,Wang, L.,Zhang, JD.,...&Han, YC.(2016).Crystallization assisted microphase separation in all-conjugated phenylene-thiophene diblock copolymers.POLYMER,97,238-246.
MLA 杨华,et al."Crystallization assisted microphase separation in all-conjugated phenylene-thiophene diblock copolymers".POLYMER 97(2016):238-246.
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