Title: Methacrylonitrile-vinylidene chloride-butyl acrylate terpolymers: Monomer sequence determination by one- and two-dimensional NMR spectroscopy
Abstract: Cf 1 H} NMR spectra and the observed va lu es compared with th e theoretical val ues obtained from Alfrey-Goldfinger's equation. The overlapping methine a nd methylene carbon resonances of terpolymers have been differentiated by DEPT experiments. The quaternary carbon resonances of M/Y/B terpolymers have been ass igned to triad compositi onal sequences. The comple te 1 H and 13 C{ 1 H } NMR spectra of terpo ly mers have been ass igned without ambiguit y with th e he lp of2D HSQC MR spectroscopi c techniques. !PC Code: Int. CJ. 7 C08F 120/42; GO I R 33/20 The growth in production of plastic materials during the past few years has been accompani ed by the increased demand for materials with improved physical and mechanical prope rties, greater heat and radiation stability etc. Only few homopolymers and binary copolymers can satisfy such demands. The addition of a third monomer component to the so called binary system can yield terpol ymers of desirable chemical , physical and mechanical properties that differ from those of relevant binary copolymers. Therefore multicomponent polymerization have continued to evoke much interest not only in academics but also in industry 1.2 . The 20 NMR spectroscopy has been used as the most reliable technique to determine the configurational and conformational structure of th e I . 34 I d I copolymers . Vanous co-,vorkers · 1ave reporte t 1e
Publication Year: 2004
Publication Date: 2004-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot