PREPARATION AND CHARACTERIZATION OF 3,3',4,4'-BENZOPHENONE TETRACARBOXYLIC DIANHYDRIDE-PYROMELLITIC DIAHYDRIDE ALTERNATING POLYIMIDES

Yang Y.; Zhi ZG.; Lu LD.; Wang X.; Yang XJ.

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PREPARATION AND CHARACTERIZATION OF 3,3',4,4'-BENZOPHENONE TETRACARBOXYLIC DIANHYDRIDE-PYROMELLITIC DIAHYDRIDE ALTERNATING POLYIMIDES

机译：3,3'，4,4'-苯甲酮四羧酸二酐-丙二醛交替聚酰亚胺的制备与表征

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Four kinds of 3,3',4,4'-benzophenone tetracarboxylic dianhydride (BTDA)-pyromelliitic dianhydride (PMDA) alternating polyimide (BTDA-PMDA API) were obtained by reacting 1 mol BTDA with 2 mol diamines to form BTDA chain-extended diamines (BTDA CED), followed by the addition of 1 mol PMDA to yield the BTDA-PMDA alternating polyamic acids (BTDA-PMDA APA), and finally by imidizing them thermally. BTDA CED were characterized by elemental analysis, infrared (IR), and H-1-NMR spectroscopy. The structures of BTDA-PMDA APA and BTDA-PMDA API were investigated by IR and H-1-NMR spectroscopy, and their thermal properties and interfacial tension were also studied. Furthermore, the characteristic properties of BTDA-PMDA API were compared with their corresponding homopolyimides from BTDA (BTDA HPI) and from PMDA (PMDA HPT). It was found that the alternating condensation polymerization is an effective method to modify polyimides interfacial tension with a small influence on the thermal stability. (C) 1997 John Wiley & Sons, Inc. [References: 10]

机译：通过使1摩尔的BTDA与2摩尔的二胺反应形成BTDA扩链的4种3,3'，4,4'-二苯甲酮四羧酸二酐（BTDA）-均苯四酸二酐（PMDA）交替聚酰亚胺（BTDA-PMDA API）二胺（BTDA CED），然后加入1 mol PMDA，得到BTDA-PMDA交替聚酰胺酸（BTDA-PMDA APA），最后通过热酰亚胺化它们。 BTDA CED通过元素分析，红外（IR）和H-1-NMR光谱进行表征。通过红外和H-1-NMR光谱研究了BTDA-PMDA APA和BTDA-PMDA API的结构，并研究了它们的热性能和界面张力。此外，将BTDA-PMDA API的特性与BTDA（BTDA HPI）和PMDA（PMDA HPT）的相应均聚酰亚胺进行了比较。已经发现，交替缩聚是改变聚酰亚胺界面张力而对热稳定性影响很小的有效方法。（C）1997 John Wiley＆Sons，Inc. [参考：10]

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《Journal of Applied Polymer Science》 |1997年第8期|共9页
作者
Yang Y.; Zhi ZG.; Lu LD.; Wang X.; Yang XJ.;
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正文语种 eng
中图分类高分子化学（高聚物）;高分子化合物产品;有机化学;
关键词
Preparation; Characterization; 3; 3'; 4; 4'-benzophenone tetracarboxylic dianhydride; Pyromellitic dianhydride; Polyimide;

机译：制备;表征;3;3';4;4'-二苯甲酮四羧酸二酐;均苯四甲酸二酐;聚酰亚胺;

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1. PREPARATION AND CHARACTERIZATION OF 3,3',4,4'-BENZOPHENONE TETRACARBOXYLIC DIANHYDRIDE-PYROMELLITIC DIAHYDRIDE ALTERNATING POLYIMIDES [J] . Yang Y., Zhi ZG., Lu LD., Journal of Applied Polymer Science . 1997,第8期

机译：3,3'，4,4'-苯甲酮四羧酸二酐-丙二醛交替聚酰亚胺的制备与表征
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PREPARATION AND CHARACTERIZATION OF 3,3',4,4'-BENZOPHENONE TETRACARBOXYLIC DIANHYDRIDE-PYROMELLITIC DIAHYDRIDE ALTERNATING POLYIMIDES

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