Abstract

A study of the free radical copolymerization of styrene-methylmethacrylate at high conversion is reported. Differences are observed between the experimentally measured compositions and those calculated according to the integrated form of the copolymer composition equation, using published reactivity ratios. Significant differences occur only in situations exhibiting a gel effect, e.g. during bulk copolymerization or with a precipitant like butyl stearate present. Negligible differences are exhibited when a solvent such as benzene is present. Differences have been expressed as changes in copolymer reactivity ratios with conversion; the start of any changes in reactivity ratios is closely related to the onset of gel effects.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.