文章基本信息

标题：Synthesis and Characterization of Phosphorous Containing NLO Polymers
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作者：K. Kaliraj, A. Muthusamy*, S. Dineshkumar, P. Chitra, S. Anand
期刊名称：Journal of Environmental Nanotechnology
印刷版ISSN：2279-0748
电子版ISSN：2319-5541
出版年度：2013
期号：3922
页码：01-05
出版社：Institute for Environmental Nanotechnology
摘要：Two diol monomers 2,6-Bis (4-hydroxybenzylidene) cyclohexanone (BHBC) and 2,6-Bis (4-hydroxy-3- methoxy benzylidene) cyclohexanone (BHMBC) were used as monomer for preparing phosphorus NLO containing polyesters. The monomers BHBC and BHMBC were prepared respectively by refluxing 4-hydroxybenzaldehyde and 3-methoxy-4-hydroxy benzaldehyde with cyclohexanone. The polyesters were synthesized by interfacial polycondensation of photosensitive diols with Phenyldichloro phosphate using hexadecyltrimethyl ammonium bromide (HDTMAB) as phase transfer catalyst. Copolymers were also prepared by incorporating Bisphenol-A in the polymer backbone. The synthesized monomers and polymers were characterized by UV-vis, FT-IR, 1H, 13C, 31P-NMR spectroscopic techniques. Thermal properties of the polymers were studied by thermogravimetric analysis and differential scanning Calorimetry under nitrogen atmosphere. The polymers show good SHG efficiency and thus it may be considered as a promising material for NLO application. Keywords: Interfacial polycondensation; NLO; Phase transfer catalyst; Thermogravimetric analysis.