000			01662nam a2200205Ia 4500
008			220216s9999 xx 000 0 und d
100			_aGeurts John M
245		0	_aMolecular mass control in methacrylic copolymer latexes containing glycidyl methacrylate
260			_bJournal of Applied Polymer Science _c1996
300			_a19-Sep
520			_aResults are presented on the preparation and characterization of batch emulsion copolymers of butyl methacrylate and glycidyl methacrylate (GMA). The two main problems occurring during an emulsion copolymerization with GMA are partial hydrolysis of the epoxy groups and internal crosslinking of the latex particles formed. The influence of chain transfer agents (CTA) on the degree of crosslinking was investigated. Furthermore, the effect of reaction temperature and the addition of methacrylic acid on the sol/gel content of the polymer formed and on the rate of epoxy hydrolysis were investigated. It was found that lowering the reaction temperature did not increase the sole content; however, it significantly decreased the extent of hydrolysis. The addition of a CTA (especially CBr4) increased the sol content of the polymer, and good control over the molecular mass was achieved. The addition of methacrylic acid showed that this monomer can be used without any complications with respect to the control of the sol content of the polymer formed.
650			_aGlycidyl methacrylate
650			_aMethacrylic copolymer latexes
650			_aMolecular mass control
700			_aGerman Anton L
700			_aJacobs Paul E
700			_aMuijis Johan G
700			_aSteven Van Es J J G
942			_cJS
999			_c63207 _d63207