Acetylenic heterocyclic nonlinear optical thermoset monomers

Details Acetylenic heterocyclic nonlinear optical thermoset monomers Acetylenic heterocyclic nonlinear optical thermoset monomers

1995-08-07

1997-01-14

Lee, Helen

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525420, 525434, 525909, C08G 7322, C08G 7532, C08L 7906

Patent

active

055940757

ABSTRACT:
The compound 2-ethynyl-5-(4-pyridyl)ethynyl thiophene: ##STR1## when incorporated into a thermoplastic polymer having repeating units of the formula: ##STR2## wherein X is --O-- or --S--, and R is selected from the group consisting of: ##STR3## and Ar is selected from the group consisting of: ##STR4## wherein X is as previously defined, poled to align the molecules and cured to crosslink at least the terminal acetylenic groups, has second-order nonlinear optical activity.

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