Addition products of di-acetylene-terminated polyimide derivativ

Details Addition products of di-acetylene-terminated polyimide derivativ Addition products of di-acetylene-terminated polyimide derivativ

1982-03-02

1983-09-06

Wong, Jr., Harry

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

525279, 526262, 546 66, 548429, 548461, C07D20934, C07D47100, C08F 2240

Patent

active

044028784

ABSTRACT:
Novel, unsaturated diacteylene-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.tbd.C--C.tbd.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.

REFERENCES:
patent: 3929713 (1975-12-01), D'Alelio
patent: 4251417 (1981-02-01), Chow et al.
patent: 4255313 (1981-03-01), Antonoplos et al.

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