Park, K. H. Kwak, M. G. Lim, J. T. Lee, Y. S. Lee, C. J. Kim, N. 2024-01-21T17:40:33Z 2024-01-21T17:40:33Z 2021-09-05 1998-01 1058-725X https://pubs.kist.re.kr/handle/201004/143412 New second-order nonlinear optical polyimide was synthesized by post-tricyanovinylation of N-phenyl containing polyimide. The tricyanovinylation in para-position of aniline was well identified by (1)H-NMR spectroscopy. The polyimide had a high glass transition temperature of 218 degrees C, and showed an excellent thermal stability. The electro-optic coefficient (r(33)) and nonlinear optical coefficient (d(33)) was 38 pm/V (at 0.63 mu m) measured by simple reflection method and 84 pm/V (at 1.06 mu m), respectively. English GORDON BREACH PUBLISHING, TAYLOR & FRANCIS GROUP Electro-optic Polyimide with Tricyanovinyl Group as an Electron Acceptor Article 10.1080/10587259808044459 1 MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.316, pp.57 - 60 MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS 316 57 60 scie scopus 000207082900014 2-s2.0-0032056922 Crystallography Crystallography Article nonlinear optical polyimide tricyanovinylation electro-optic coefficient