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Synthesis and characterization of new aramids based on o-(m-triphenyl)-terephthaloyl chloride and m-(m-triphenyl)-isophthaloyl chloride
Zhou, Sheng1,2; Zhang, Mengyao1; Wang, Rong2; Ping, Jing1; Zhang, Xiaoli2; Zhao, Ning2; Xu, Jian2; Shen, Zhihao1; Fan, Xinghe1
2017-01-27
Source PublicationPOLYMER
Volume109Pages:49-57
AbstractTwo monomers o-(m-triphenyl)-terephthaloyl chloride (TPH1-COCl) and m-(m-triphenyl)-isophthaloyl chloride (TPH2-COCl) with bulky pendant groups were prepared, and they were polymerized with p-phenylenediamine (PPD) or copolymerized with PPD and terephthaloyl chloride (TPC) to prepare aromatic polyamides which were named TPH1 polymer and TPH2 polymer, respectively. The structures of the monomers with bulky pendant groups and the polymers were characterized by H-1 NMR and gel permeation chromatography. The resulting polymers are soluble in some organic solvents such as N-methyl-2-pyrrolidone. However, the solubility of the two series of polymers was different due to the different structures of the two monomers, and it is affected by the feeding ratio of the monomers. Both kinds of polymers have good thermal stabilities with 5% weight loss temperatures close to 500 degrees C. And glass transitions of some TPH2 polymers were observed. Most of these polyamides show lyotropic liquid crystalline (LLC) behaviors as evidenced by polarized light microscopy results. And the LLC properties are influenced by the structures, molecular weights, and concentrations of the polymers. (C) 2016 Elsevier Ltd. All rights reserved.
KeywordBulky Pendant Group Aramid Solubility Thermal Property Lyotropic Liquid Crystal
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/38053
Collection高分子物理与化学实验室
Affiliation1.Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys, Ctr Soft Matter Sci & Engn,Coll Chem & Mol Engn,M, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Lab Polymer Phys & Chem, Inst Chem, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Sheng,Zhang, Mengyao,Wang, Rong,et al. Synthesis and characterization of new aramids based on o-(m-triphenyl)-terephthaloyl chloride and m-(m-triphenyl)-isophthaloyl chloride[J]. POLYMER,2017,109:49-57.
APA Zhou, Sheng.,Zhang, Mengyao.,Wang, Rong.,Ping, Jing.,Zhang, Xiaoli.,...&Fan, Xinghe.(2017).Synthesis and characterization of new aramids based on o-(m-triphenyl)-terephthaloyl chloride and m-(m-triphenyl)-isophthaloyl chloride.POLYMER,109,49-57.
MLA Zhou, Sheng,et al."Synthesis and characterization of new aramids based on o-(m-triphenyl)-terephthaloyl chloride and m-(m-triphenyl)-isophthaloyl chloride".POLYMER 109(2017):49-57.
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