发明授权
US5464925A Benzocyclobutene-terminated polymides 失效
苯并环丁烯封端的聚酰亚胺

Benzocyclobutene-terminated polymides
摘要:
The present invention is an oligomer represented by the formula: ##STR1## wherein X is a moiety selected from the group consisting of: ##STR2## where each Y is independently S, O, CH.sub.2, C.dbd.O, CH.sub.3 --C--CH.sub.3, O.dbd.S.dbd.O, or CF.sub.3 --C--CF.sub.3.In another aspect, the present invention is a polymer of the above-described oligomer.
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