Substituted-quaterphenylene polyamide

Details Substituted-quaterphenylene polyamide Substituted-quaterphenylene polyamide

1981-03-02

1983-07-12

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528183, 528187, 528185, 528191, 528192, 528205, 528208, 528331, 528336, 528345, 528363, 264 13, 568930, C08G 6932

Patent

active

043931944

ABSTRACT:
A class of polyamides comprising recurring units having substituted-quaterphenylene radicals is disclosed. The polymers comprise recurring units of the formula ##STR1## wherein each of A and B is a divalent radical, except that B can represent a single bond; R and R.sup.1 are each hydrogen, alkyl, aryl, alkaryl or aralkyl; and c is zero or one; and wherein, when c is one, at least one of A and B is a substituted-quaterphenylene radical having the formula ##STR2## where each U is a substituent other than hydrogen, each W is hydrogen or a substituent other than hydrogen, each p is an integer from 1 to 3, each X is hydrogen or a substituent other than hydrogen and each r is an integer from 1 to 4, the U, W.sub.p and X.sub.r substitution being sufficient to provide the radical with a non-coplanar molecular configuration; and wherein, when c is zero, A is a substituted-quaterphenylene radical as aforedescribed.
The polyamide materials exhibit solubility in select solvents including those of the non-amide type and are characterized by high electron density substantially cylindrically distributed about the long axis thereof. The molecularly oriented polymers are optically uniaxial and are suited to application in optical filter and other devices where a highly refractive and birefringent polymeric material is desired.

REFERENCES:
patent: 4288588 (1981-09-01), Donohue

Affiliated with

Also associated with

Rating

Substituted-quaterphenylene polyamide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Substituted-quaterphenylene polyamide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Substituted-quaterphenylene polyamide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-199563