AN EPOXY/(METHYL METHACRYLATE) INTERPENETRATING POLYMER NETWORK FOR NONLINEAR OPTICS

• 来源期刊: 高分子科学（英文版）
• 年，卷（期）: 1999,（5）
• 页码范围: 435-440
• 页数: 6页
• 语种: 英文

摘要

An interpenetrating polymer networks (IPN) consisting of an epoxy-based polymer network and a polymethyl methacrylate network were synthesized and characterized. The IPN showed only one Ts, and hence a homogeneous-phase morphology was suggested. The second-order nonlinear optical coefficient (d33) of the IPN was measured to be 1.72×10-7 esu. The study of NLO temporal stability at room temperature and elevated temperature (100℃) indicated that the IPN exhibits a high stability in the dipole orientation due to the permanent entanglements of two component networks in the IPN system. Long-term stability of second harmonic coefficients was observed at room temperature for more than 1000 h.