【序号】： 【作者】：Jun Li, Shinsaku Shiraishi, Kazuaki Kudo 【题名】：First Synthesis of Both “Head-to-Head” and “Head-to-Tail” Polyimides Using a Common Unsymmetric Alicyclic Tetracarboxylic Dianhydride 【期刊、年、卷、期、起止页码】：Bulletin of the Chemical Society of Japan, Vol. 74 (2001) No. 9P 1767-1773
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