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- Title
Synthesis, third-order nonlinear optical (NLO) properties of polystyrene containing 1,8-naphthalimide chromophores in the side chain.
- Authors
Jin Zhengneng; Li Najun; Lu Jianmei; Xu Qingfeng; Xia Xuewei; Ge Jianfeng; Wang Lihua
- Abstract
Two novel methacrylate monomers, (4-((methacryloyloxy)-hexyloxy)-benzylidene-hydrazine)-N-(4-alkyloxy)-benzene-1,8-naphthalimide (NAOPH) and (4-((methacryloyloxy)-hexyloxy)-3,5-dimethoxy-benzylidene-hydrazine)-N-(4-alkyl-oxy)-benzene-1,8-naphthalimide (NA3OPH) were synthesized. The polystyrenes containing 1,8-naphthalimide chromophores were prepared by copolymerization of styrene with NAOPH or NA3OPH. The obtained copolymers were characterized by GPC, 1H-NMR and TLC. The third-order NLO properties of the monomers and copolymers were measured by Z-scan technique. Results show that both monomers and copolymers have reverse saturable absorption (RSA) and self-defocusing effects. For monomers, NA3OPH has larger third-order NLO susceptibility χ(3) than NAOPH due to introduction of two more methoxy groups. For all copolymers, larger χ(3) is observed when content of 1,8-naphthalimide chromophores was higher.
- Subjects
METHYL methacrylate; POLYSTYRENE; NONLINEAR optics; PROTEIN synthesis; STYRENE; COPOLYMERS
- Publication
e-Polymers, 2010, p1
- ISSN
1618-7229
- Publication type
Article