Abstract
Abstract The chemical microstructural changes of an accelerated sulfur cure of IIR with TMTD/ ZnO/sulfur have been elucidated. No reaction occurs in the isobutylene units. Isomerization occurs at the initial stages of vulcanization and reaches an equilibrium at 30–35 min. Sulfurization initially results in III and VI and is polysulfidic in nature. At cure times greater than 75 min, desulfurization of III and VI occurs and mono- and poly-sulfidic sulfurization giving IV and VII occurs. The reaction rate of III and VI is much greater than that of IV and VII. Equilibrium swelling measurements have been shown to correlate with rheometry measurements for this system and have shown that polysulfldic III and VI correlate with an increase in properties, while mono- and poly-sulfldic IV and VII correlate with reversion. No migration of the double bond, saturation, internal cyclization, or sulfurization resulting in V and VIII were observed.
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.
