Synthesis and characterization of phenylene-thiophene all-conjugated diblock copolymers
文献类型：期刊论文
| 作者 | Wu, Shupeng1,2; Bu, Laju1,2; Huang, Li1,2; Yu, Xinhong1; Han, Yanchun1; Geng, Yanhou1; Wang, Fosong1 |
| 刊名 | POLYMER
 |
| 出版日期 | 2009-12-10 |
| 卷号 | 50期号:26页码:6245-6251 |
| 关键词 | Grim Polymerization All-conjugated Block Copolymer Microphase Separation |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2009.11.001 |
| 英文摘要 | Grignard metathesis (GRIM) polymerization for all-conjugated diblock copolymers comprising poly (2,5-dihexyloxy-1,4-phenylene) (PPP) and poly(3-hexylthiophene) (P3HT) blocks were systematically studied with LiCl as additive and 1,2-bis (diphenylphosphino) ethane nickel dichloride (Ni(dppe)Cl(2)) or 1,3-bis(diphenylphosphino) propane nickel dichloride (Ni(dppp)Cl(2)) as catalyst. It was found that the addition order of the monomers was crucial for the success of copolymerization. With the monomer addition in the order of phenyl and then thienyl Grignard reagents, all-conjugated PPP-b-P3HT diblock copolymers with different block ratios were successfully synthesized. In contrast, the inverted addition order only afforded a mixture containing both block copolymers and deactivated or end-capped homopolymers. Mass spectroscopic analysis indicates that the effect of the addition order of the monomers on copolymerization is attributed to the low efficiency of intramolecular Ni transfer from thiophene to phenylene units. The resulting PPP-b-P3HT diblock copolymers were characterized by differential scanning calorimetry (DSC) and atomic force microscopy (AFM). It was found that both PPP and P3HT blocks in the copolymers were crystalline, and microphase separation between them took place, as indicated by two endothermal transitions corresponding to the melting of PPP and P3HT blocks, respectively. These unique properties may tender PPF-b-P3HT diblock copolymers potential applications in optoelectronics. (C) 2009 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000272654100008 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/66893]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Geng, Yanhou |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Shupeng,Bu, Laju,Huang, Li,et al. Synthesis and characterization of phenylene-thiophene all-conjugated diblock copolymers[J]. POLYMER,2009,50(26):6245-6251. |
| APA | Wu, Shupeng.,Bu, Laju.,Huang, Li.,Yu, Xinhong.,Han, Yanchun.,...&Wang, Fosong.(2009).Synthesis and characterization of phenylene-thiophene all-conjugated diblock copolymers.POLYMER,50(26),6245-6251. |
| MLA | Wu, Shupeng,et al."Synthesis and characterization of phenylene-thiophene all-conjugated diblock copolymers".POLYMER 50.26(2009):6245-6251. |
入库方式： OAI收割
来源：化学研究所
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