发明名称 |
Monomeric diimides having terminal conjugated diacetylene groups |
摘要 |
Novel, unsaturated diacetylene-terminated polyimides and processes for their preparation are disclosed herein. These new polyimides are derivatives of anhydride-terminated aromatic polyimides from which they can be prepared by amidation to provide new unsaturated amide groups having a terminal group containing the structure -C 3BOND C-C 3BOND C-, hereinafter sometimes referred to as "conjugated diynes". These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation, thereby extending greatly the applications for which the aromatic polyimides can be employed. Moreover, these new polyimides can undergo the Diels-Alder type of addition with a large number of dienophiles. Certain monomeric materials are also described.
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申请公布号 |
US4331601(A) |
申请公布日期 |
1982.05.25 |
申请号 |
US19800199606 |
申请日期 |
1980.10.22 |
申请人 |
PLASTICS ENGINEERING COMPANY |
发明人 |
D'ALELIO, DECEASED, GAETANO F.;WAITKUS, PHILLIP A. |
分类号 |
C07D209/48;C07D487/04;(IPC1-7):C07D209/34;C07D471/00;C08F22/40 |
主分类号 |
C07D209/48 |
代理机构 |
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主权项 |
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地址 |
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