Preparation and characterization of thermoplastic polymers from hydroxyalkyl methacrylates
Preparation and characterization of thermoplastic polymers from hydroxyalkyl methacrylates
复制标题
甲基丙烯酸羟烷基酯热塑性聚合物的制备及表征
DOI：
10.1002/app.1987.070340106
复制
发表时间：
1987
影响因子：
3
通讯作者：
M. Sefton
中科院分区：
文献类型：
--
作者：
W. Stevenson;R. Evangelista;R. L. Broughton;M. Sefton
Soluble polymers have been produced from technical-grade 2-hydroxyethyl methacrylate (HEMA) and hydroxypropyl methacrylate (HPHA) using a combination of vacuum distillation and solvent extractions to purify the monomers prior to solution polymerization. These extractions, particularly of HEMA with hexane and corn oil, were found to reduce the level of ethylene glycol dimethacrylate to < 1%, according to gas chromatographic analysis. Homopolymers of HEMA and HPMA and copolymers of HEMA with methyl methacrylate were prepared with a wide range of molecular weights and characterized by viscometry in dimethyl formamide, infrared spectroscopy including deuterium exchange experiments, and high resolution proton and carbon nuclear magnetic resonance (NMR) spectroscopy. The latter was used to determine copolymer composition and tacticity distribution.
