[1]杨 荣,孙 俊,李锦春.主链含磷液晶聚酯的合成及性能研究[J].常州大学学报(自然科学版),2018,30(06):25-30.[doi:10.3969/j.issn.2095-0411.2018.06.004]
 YANG Rong,SUN Jun,LI Jinchun.Synthesis and Properties of Main Chain Phosphorus-Containing Liquid Crystalline Polyester[J].Journal of Changzhou University(Natural Science Edition),2018,30(06):25-30.[doi:10.3969/j.issn.2095-0411.2018.06.004]
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主链含磷液晶聚酯的合成及性能研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
30
期数:
2018年06期
页码:
25-30
栏目:
出版日期:
2018-11-28

文章信息/Info

Title:
Synthesis and Properties of Main Chain Phosphorus-Containing Liquid Crystalline Polyester
作者:
杨 荣孙 俊李锦春
(江苏省环境友好高分子材料重点实验室,江苏 常州 213164; 常州大学 材料科学与工程学院,江苏 常州 213164; 常州大学 材料科学与工程国家级实验教学示范中心,江苏 常州 213164)
Author(s):
YANG Rong SUN Jun LI Jinchun
(Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, Changzhou 213164, China; School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China; National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, China)
关键词:
主链液晶 含磷 相变行为 热稳定性
Keywords:
main chain liquid crystal phosphorus containing phase transition behavior thermal stability
分类号:
O 633.4
DOI:
10.3969/j.issn.2095-0411.2018.06.004
文献标志码:
A
摘要:
采用酯交换法,以联苯二氧乙醇和亚磷酸二乙酯为原料,合成了主链含磷液晶聚酯。通过红外光谱(FTIR)、核磁共振谱(NMR)对含磷液晶聚酯的化学结构进行了表征; 利用差示扫描量热仪(DSC)、偏光显微镜(POM)和X射线衍射仪(XRD)对液晶聚酯的相变行为进行研究; 通过红外光谱和热重分析(TGA)测试对液晶聚酯的热降解行为进行了探究。结果表明:所合成的含磷液晶聚酯是近晶相液晶聚酯,含磷液晶聚酯热稳定性好,成炭能力强,是一种潜在的高效液晶大分子阻燃剂。
Abstract:
Novel flame retardant liquid crystalline polyester(BPO-DEP)was synthesized through melting transesterification with 2,2-([1,1-biphenyl]-4,4-diyl)diethanol and diethyl phosphite. The chemical and phase structures of BPO-DEP were characterized by Fourier transform infrared spectroscopy(FTIR), proton nuclear magnetic resonance spectroscopy(1H NMR), differential scanning calorimetry(DSC), polarized optical microscope(POM), X-ray diffraction(XRD), and the thermal and flame retardant properties were investigated via thermal gravimetric analysis(TGA)and FTIR. The results showed that BPO-DEP showed a smectic A phase. The liquid crystalline temperature(tlc)and the isotropic temperature(ti)were 138.1 ℃ and 224.3 ℃. The TGA results showed that the initial thermal decomposition temperature(t5%), of BPO-DEP were 298.6 in air, and 304.3 ℃ in nitrogen. The residues at 800 ℃ were 26.6% in air, and 43.7% in nitrogen.

参考文献/References:


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备注/Memo

备注/Memo:
基金项目:国家自然科学基金资助项目(51473024); 江苏省自然科学基金青年项目(BK20150257)。
作者简介:杨荣(1986-),男,重庆奉节人,博士,讲师。E-mail:cloudyyang@cczu.edu.cn
更新日期/Last Update: 2018-10-28