Premium
Interpenetrating polymer networks with stable second order nonlinear optical properties
Author(s) -
Xie HongQuan,
Huang XuDong,
Guo JunShi
Publication year - 1996
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(199604)7:4<309::aid-pat525>3.0.co;2-y
Subject(s) - materials science , poling , differential scanning calorimetry , polyurethane , polymer , thermal stability , glass transition , absorbance , spin coating , polarizability , thin film , chemical engineering , polymer chemistry , composite material , coating , optics , optoelectronics , dielectric , organic chemistry , nanotechnology , molecule , thermodynamics , physics , chemistry , engineering , ferroelectricity
Interpenetrating polymer networks (IPNs) based on polyurethane and polyacrylate‐containing 4‐(4'‐nitrophenylazo) aniline chromophore groups were synthesized and characterized by infrared spectra, gel content and differential scanning calorimetry. Thin, transparent films of the IPNs were prepared by spin‐coating, followed by thermal curing and corona poling. The poled IPN film shows very good optical properties and exhibits only one glass transition temperature. The second‐order nonlinear optical (NLO) properties of the poled film were studied by visible light absorbance measurement according to one‐dimensional rigid oriented gas model. The second‐order nonlinear optical polarizability can reach 10 ‐7 e.s.u. The poled IPN film of defined composition showed a good temporal stability of NLO properties at 120°C for more than 160 hr.