Abstract
A calorimetric study of first order transitions in the specific heat of PVC is reported. The results show that various types of commercial PVC exhibit a melting range which starts at about 150 °C and extends into the thermal decomposition region. A heat of fusion of 750 cal/mole was calculated from the melting energy and the change in density upon melting. A similar melting range starting at 180 °C was found in PVC polymerized at −30 °C. Once melted, this primary cristallinity does not reappear after annealing. It can be restored by dissolution and subsequent careful precipitation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Kolloid-Zeitschrift & Zeitschrift für Polymere
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.