Mesogen-Jacketed Liquid Crystalline Polymers with a Polynorbornene Main Chain: Green Synthesis and Phase Behaviors
文献类型:期刊论文
作者 | Zhu, Yu-Feng; Zhang, Zhen-Yu; Zhang, Qi-Kai; Hou, Ping-Ping; Hao, De-Zhao; Qiao, Yang-Yang; Shen, Zhihao; Fan, Xing-He; Zhou, Qi-Feng |
刊名 | MACROMOLECULES
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出版日期 | 2014-05-13 |
卷号 | 47期号:9页码:2803-2810 |
ISSN号 | 0024-9297 |
DOI | 10.1021/ma500606e |
英文摘要 | We synthesized a new series of MJLCPs with a polynorbornene main chain, PNbnPT (n = 8, 10, 12, 14, 16, 18, which is the number of carbons in the side-chain alkyl tails), through ring-opening metathesis polymerization and investigated their phase behaviors. The monomers were facilely synthesized in satisfactory yields through a key intermediate, N-(2,5-dicarboxylphenyl)-cis-5-norbornene-exo-2,3-dicarboximide. Differential scanning calorimetry, polarized light microscopy, and wide-angle X-ray diffraction results demonstrate that the phase behavior of PNbnPT is strongly dependent on the alkyl-tail length. Polymers with relatively short alkyl tails, PNb8PT and PNb10PT, are amorphous in the whole temperature range before degradation. When the alkyl-tail length increases, PNbnPTs (n = 12, 14, 16, 18) develop into the smectic A phase, and the degree of order increases with increasing alkyl-tail length. The synthetic pathway for MJLCPs with a polynorbornene main chain in this work is more robust and greener than those reported to the best of our knowledge. And MJLCPs with a polynorbornene main chain show quite different phase behaviors compared with those with a polyethylene backbone, and they may be used to create fascinating functional materials. |
语种 | 英语 |
WOS记录号 | WOS:000336020900005 |
出版者 | AMER CHEMICAL SOC |
源URL | [http://ir.iccas.ac.cn/handle/121111/50807] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Shen, Zhihao |
作者单位 | Peking Univ, Coll Chem & Mol Engn, Minist Educ, Beijing Natl Lab Mol Sci,Key Lab Polymer Chem & P, Beijing 100871, Peoples R China |
推荐引用方式 GB/T 7714 | Zhu, Yu-Feng,Zhang, Zhen-Yu,Zhang, Qi-Kai,et al. Mesogen-Jacketed Liquid Crystalline Polymers with a Polynorbornene Main Chain: Green Synthesis and Phase Behaviors[J]. MACROMOLECULES,2014,47(9):2803-2810. |
APA | Zhu, Yu-Feng.,Zhang, Zhen-Yu.,Zhang, Qi-Kai.,Hou, Ping-Ping.,Hao, De-Zhao.,...&Zhou, Qi-Feng.(2014).Mesogen-Jacketed Liquid Crystalline Polymers with a Polynorbornene Main Chain: Green Synthesis and Phase Behaviors.MACROMOLECULES,47(9),2803-2810. |
MLA | Zhu, Yu-Feng,et al."Mesogen-Jacketed Liquid Crystalline Polymers with a Polynorbornene Main Chain: Green Synthesis and Phase Behaviors".MACROMOLECULES 47.9(2014):2803-2810. |
入库方式: OAI收割
来源:化学研究所
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