Polyimide/Inorganic Composite - Interpenetrating Polymer Network for StableSecond-Order Nonlinear Optics

摘要

A new class of IPN system has been prepared and investigated. This IPN systemcombines the polybismaleinimide network and the NLO-active phenoxysilicon network. The second-order NLO coefficients, d33, values of the samples range from 2.5 to 6.7 pm/V depending on the composition and the processing conditions. The temporal stability of the second-order nonlinearities for these samples at 110 deg C varies from 47 to 88% retention after 274 h. Interpenetrating polymer network, Nonlinear optics, Polybismaleinimide.