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双-2-噁唑啉化合物对PET的改性作用研究
引用本文:石永刚,潘恩黎,陈瑞珠,张云灿.双-2-噁唑啉化合物对PET的改性作用研究[J].合成树脂及塑料,1995(2).
作者姓名:石永刚  潘恩黎  陈瑞珠  张云灿
作者单位:南京化工学院,南京化工学院,南京化工学院,南京化工学院 江苏,210009,江苏,210009,江苏,210009,江苏,210009
摘    要:用挤出机熔融共混法,比较了2,2′-双(2-噁唑啉),1,4-双(2-噁唑啉)苯和1,3-双(2-噁唑啉)苯3种双噁唑啉化合物与PET端羧基进行偶联反应和封端反应的程度和差别;并考查双噁唑啉助剂加入量,挤出温度与时间,后热处理对扩链效果的影响,以及研究扩链后PET的热失重、水解稳定性,力学性能及~(13)C~NMR分析。结果表明,经噁唑啉化合物扩链的PET增进了热稳定性和耐水解性,提高玻纤增强PET的力学性能。

关 键 词:聚对苯二甲酸乙二醇酯  双-2-噁唑啉  改性  扩链

Study on Modifying Effect of Bisoxazolines on PET
Shi Yonggang,Pan Enli,Chen Ruizhu and Zhang Yuncan.Study on Modifying Effect of Bisoxazolines on PET[J].China Synthetic Resin and Plastics,1995(2).
Authors:Shi Yonggang  Pan Enli  Chen Ruizhu and Zhang Yuncan
Affiliation:Nanjing Institute of Chemical Technology
Abstract:The efficiency and difference in proceeding coupled and blocked reaction of PET with 2,2-bis (2-oxazoline) or 1,4 -bis (2-oxazolinyl) benzene and 1,3-bis (2-oxazolinyl) benzene were evaluated during meltblended by an extruder . The influence of added amount of bisoxazoline . extruding temperature and time , as well as post-heat treatment on chain - extending efficiency for PET were examined .Some properties of chain-extended PET , such as loss of weight by thermogravimetric analysis , hydrolytic stability . the mechanical properties of chain-extended PET/GF reinforced composites and characterization of 13C-NMR , were investigated . The results showed that above mentioned properties for chain-extended PET were considerably improved.
Keywords:PET : bis-2-oxazoline  modification : chain extension
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