| 摘要 |
PURPOSE:To enhance a nonlinear optical effect and to improve moldability by constituting the above material with specific structural units. CONSTITUTION:This org. nonlinear optical material is a polymer which consists of the structural units expressed by formulas I and II and in which the unit I is 5 to 100mol%, the unit II is 0 to 95mol% and the mol. wt. is 10,000 to 2,000,000. In the formula, m denotes an integer from 1 to 10; n denotes 0, 1; X denotes formula III; A denotes-NO2,-CN,-CF3 etc,; Y denotes a hydrogen atom, halogen atom,-NO2,-CN,-CF3 etc.; p denotes an integer from 1 to 10. This polymer is synthesized by, for example, three stages; a polymerizing stage, hydrolyzing stage and photofunctional group introducing stage. The org. nonlinear optical material is obtd. by residsolving the resulted copolymer in an org. solvent, such as sulfolane, adding a base, such as pyridine triethylamine, to the soln. and heating the soln. together with the nonlinear optical compd. to be introduced. The nonlinear optical compd. to be introduced includes, for example, P-nitroaniline and its deriv., 4-methyl sulfone biphenyl deriv., etc. |
