Abstract
Abstract The influence of solvent on the cationic polymerization of 2-phenyl-2-oxazoline initiated with 2-phenyl-2-oxazalinium perchlorate was studied in connection with the physical properties of the solvents used. The polymerizations in all solvents used proceeded successively with little termination and transfer reactions. The propagation rate constant in polar solvents was larger than in nonpolar solvents. The propagation rate constant increased with a decrease in nucleophilicity of the solvent used. In binary solvent systems composed of components with similar nucleophilicities and with different dielectric constants, the propagation rate constant increased with an amount of the polar solvent. In binary solvent systems composed of components with similar dielectric constants and with different nucleophilicities, the propagation rate constant decreased with the amount of the solvent having more nucleophilicity. The activation energy (Ea) of the propagation reaction was about 17-27 kcal/mole, and the a...
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 callMore From: Journal of Macromolecular Science: Part A - Chemistry
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.
