Nonlinear optical characterization of new thermoset hydrosilation polymers

摘要

The second harmonic generation thermal stability of a new class of thermoset matrix for nonlinear optical (NLO) polymers based on the hydrosilation reaction of tetramethylcyclotetrasiloxane with chromophores possessing reactive carbonhyphen;carbon double bonds is presented. One such chromophore with double bonds of different reactivity toward hydrosilation that were covalently attached to two different sites on the NLO pgr; system generated a nonlinear optical polymer with thermal stability in excess of 190thinsp;deg;C and a nonlinear optical coefficient ofd31=3plusmn;1 pm/V.