Abstract
Studies were made of kinetic features of radical polymerization of esters containing silicon with different substituents at the silicon atom: (methamcryloxymethyl) methyldietoxysilane (MMD) and (methacryloxymethyl)methylheptamethyltrisiloxane (MMT). Polymerization was carried out in toluene in the presence of benzoyl peroxide at temperature of 50–90°. It was shown that the reaction is characterized by first order in relation to the monomer. The order of the reaction in relation to the initiator was 0·5 in the case of MMT and 0·4 in the case of MMD. The effective activation energy of the reaction was found to be 10 ± 3 kcal/mole. A mechanism was proposed for polymerization of MMD, which assumes chain transfer through the monomer. Differences were found in kinetic parameters of polymerization of methacryloxymethyl derivatives of silicon and methylmethacrylate. It was assumed that these differences are due to the effect of steric factor in breakage which is cauused by the existence of siloxy groups in the side chain of polymers containing silicon.
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.
