Amorphus polyamides having second order nonlinear optical proper

Details Amorphus polyamides having second order nonlinear optical proper Amorphus polyamides having second order nonlinear optical proper

1995-06-21

1997-12-02

Hightower, P. Hampton

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

Synthetic resins

From carboxylic acid or derivative thereof

528313, 528332, 528335, 528337, 528345, 526311, 526312, C08G 6908, C08G 7310

Patent

active

056937440

ABSTRACT:
An amorphous polyamide represented by the formula(2) ##STR1## in which each R is at least one alkylene radical having 1 to 10 carbon atoms, R' is an electron acceptor group represented by the formula(3), ##STR2## wherein Y is --C.tbd.N, --NO.sub.2, --SO.sub.2 --R(R.dbd.C.sub.n H.sub.2n+1, n=1 to 20 alkyl derivatives), ##STR3## R" is at least one aliphatic or aromatic divalent group having 2 to 20 carbon atoms, and n is an integer of more than 3, having second order nonlinear optical property, and a method for preparing the polymer by the polycondensation of dicarboxylic acid derivative, having second order nonlinear optical property in its side chain, with diamine are disclosed.

REFERENCES:
patent: 4808332 (1989-02-01), DeMartino
Burland, D.M.et al. "Second Order Nonlinearity..."Chem. Rev. 1994, 94, 31-75.
Williams, D.J. "Organic Polymeric..."Angew. Chem. Int. Ed. Engl. 23 (1984) 690-703.

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