商聪1,2, 刘洋1, 焦娅1,2, 张林2,3*, 林润雄1*
(1.青岛科技大学 教育部高性能聚合物和成型技术工程研究中心,山东 青岛266042;
2.中国工程物理研究院 激光聚变研究中心,四川 绵阳 621000;
3.西南科技大学 中国工程物理研究院激光聚变研究中心极端条件物质特性联合研究室, 四川 绵阳 621010)
摘要: 用4羟基吲哚与4,4′二氟二苯酮作为单体经亲核取代反应合成了聚N亚苯基吲哚醚酮(PEIN)。其结构通过红外、核磁、GPC以及热分析进行表征。通过分子模拟方法对目标聚合物的分子链结构进行了分析。基于该聚合物具有较为刚性的分子骨架结构,其表现出优异的热性能和较高的玻璃化转变温度(T5%=503 ℃,Tg=208 ℃)。由于该聚合物具有锯齿状的分子结构,使得聚合物具有良好的溶解性,可溶于NMP(N甲基吡咯烷酮)、氯仿等溶剂。
关键词: 聚N亚苯基吲哚醚酮(PEIN); 热稳定性; 溶解性; 亲核取代
中图分类号: O 63 文献标志码: A
Synthesis and Properties of Poly (Naryleneinlole ether)
SHANG Cong1, 2, LIU Yang1, JIAO Ya1, 2, ZHANG Lin2, 3, LIN Runxiong1
(1.Engineering Research Center of High Performance Polymer and Molding Technology, Ministry of Education,
Qingdao University of Science and Technology, Qingdao 266042, China;2.Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621000, China;3.Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010,China)
Abstract: Poly(Naryleneindole ether) (PEIN) has been synthesized by nucleophilic substitution reaction of 4,4′difluoro diphenylmethanone with 4hydroxyindole. The structures of the polymers are characterized by means of FTIR, 1H NMR spectroscopy, gel permeation chromatography and thermal analysis; the microstructure of PEIN has been analyzed and calculated via molecular simulation method. Based on the rigid molecular skeleton structure of the polymer, poly PEIN showed excellent thermal property and high glass transition temperature (T5% =503 ℃, Tg =208 ℃). Due to the presence of the zigzag structures, this polymer has good solubility, which can dissolve in chloroform (CHCl3) and NMP (Nmethyl2pyrrolidone).
Key words: poly(Naryleneindole ether) (PEIN); thermal stability; solubility; nucleophilic substitution reaction
收稿日期: 20140109
基金项目: 中国工程物理研究院科学技术发展基金项目(2012A0302015;2012B0302051;2013B0302051).
作者简介: 商聪(1988—),男,硕士研究生. *通信联系人.