Abstract
The thermal degradation behavior of suspension-polymerized poly(vinyl chloride) (PVC) and ethylene-vinyl chloride copolymer (E-VC) in the early stages was compared by continuous measurement of the extent of dehydrochlorination. The behavior of E-VC was different from that of PVC; the rate of dehydrochlorination of E-VC decreased as a function of heating time whereas that of PVC was constant. It was presumed that the dehydrochlorination reaction was terminated at the ethylene units in the polymer backbone. At a very early degradation stage, however, the rate of dehydrochlorination of E-VC was greater than that of PVC. This degradation behavior arose from structural defects in the polymer, i.e. the content of tertiary chlorine increased according to the increase in ethylene content in E-VC during suspension polymerization.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
