| 一种新型热致性液晶聚酯酰亚胺的合成与表征 |
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| 引用本文： | 党晓东,韦春,刘红霞,潘冬明,李肖建,曾思华.一种新型热致性液晶聚酯酰亚胺的合成与表征[J].塑料科技,2012,40(1):40-43. |
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| 作者姓名： | 党晓东 韦春 刘红霞 潘冬明 李肖建 曾思华 |
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| 作者单位： | 桂林理工大学材料科学与工程学院育色金属及材料加工新技术教育部重点实验室,广西桂林,541004 |
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| 基金项目： | 国家自然科学基金，广西自然科学基金，广西科技厅资助项目 |
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| 摘 要： | 在Higashi直接缩聚法的基础上,利用分步投料法,以N,N-己二撑-1,6-双苯偏三酸酰亚胺二胺(IA6)、对羟基苯甲酸(PHB)和对苯二酚二对羟基苯甲酸酯(PHQ)为主要原料,合成了一种新型三元共聚液晶聚酯酰亚胺(IA6PP)。采用FTIR、DSC、TGA、POM和WAXD等方法研究了单体种类对所合成的聚合物结构和性能的影响。结果表明:IA6PP呈现出典型的向列型液晶的特征,液晶温度区间为252~365℃,热稳定性明显高于由4,4-二羟基二苯甲酮(DHBP)、IA6和PHB合成的液晶聚酯酰亚胺(IA6PD)。
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| 关 键 词： | 热致性液晶 聚酯酰亚胺 合成 表征 |
Synthesis and Characterization of a Novel Thermotropic Liquid Crystal Polyester-imide |
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| Dang Xiaodong
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Wei Chun
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Liu Hongxia
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Pan Dongming
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Li Xiaojan
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Zeng Sihua.Synthesis and Characterization of a Novel Thermotropic Liquid Crystal Polyester-imide[J].Plastics Science and Technology,2012,40(1):40-43. |
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| Authors: | Dang Xiaodong Wei Chun Liu Hongxia Pan Dongming Li Xiaojan Zeng Sihua |
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| Affiliation: | Key Laboratory of New Processing Technology for Nonferrous Metals and Materials of Ministry of Education,College of Material Science and Engineering,Guilin University of Technology,Guilin 54004,China |
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| Abstract: | Based on Higashi direct polycondensation method,a novel polyester-imide(IA6PP) was synthesized from N,N’-hexane-1,6-diybis(tri-millitimides)(IA6),p-hydroxyl benzoic acid(PHB) and di(p-hydroxyl benzoic acid) hydroquinone ester(PHQ).The effects of monomers on the structure and properties of the polymers were studied by FTIR,DSC,TGA,POM and WAXD.The results show that IA6PP exhibits typical characteristics of nematic liquid crystal polymer,its liquid crystal temperature range is 252~365℃,its thermal stability is much better than that of IA6PD which is synthesized from 4,4’-dihydroxybenzophenone(DHBP),IA6 and PHB. |
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| Keywords: | Thermotropic liquid crystal Polyester-imide Synthesis Characterization |
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