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Novel polyimides derived from 2,3,3′,4′-benzophenonetetracarboxylic dianhydride

✍ Scribed by Xingzhong Fang; Zhen Wang; Zhenghua Yang; Lianxun Gao; Qingxuan Li; Mengxian Ding


Book ID
108366850
Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
233 KB
Volume
44
Category
Article
ISSN
0032-3861

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2,2,Ј3,3Ј-Biphenyltetracarboxylic dianhydride (2,2,Ј3,3Ј-BPDA) was prepared by a coupling reaction of dimethyl 3-iodophthalate. The X-ray single-crystal structure determination showed that this dianhydride had a bent and noncopolanar structure, presenting a striking contrast to its isomer, 3,3,Ј4,4Ј