cationic polymerization

cationic polymerization

[‚kad·ē′än·ik pə‚lim·ə·rə′zā·shən]
(organic chemistry)
A type of polymerization in which Lewis acids act as catalysts.
References in periodicals archive ?
Cationic polymerization of poly(L-lactide) with trifluoromethanesulfonic acid as catalyst provides regular polymer structure which has strong influence on the increasing glass transition temperature, Fig.
It is well known that the photoinitiated cationic polymerization of systems containing epoxy compounds presents a number of advantages, in particular lack of inhibition by atmospheric oxygen, post-polymerization in the dark, low shrinkage, high mechanical performance of the cured materials, and good adhesion to various substrates.
The cation radical interacts with the free-radicals from PE molecule fragment through electron transfer that to be deoxidized, inducing the formation of carbenium ions and increasing the reaction course of cationic polymerization.
This short paper has demonstrated the importance of the cationic polymerization reaction in the production of butyl rubber at Bayer Inc.
Patent 7,105,615 (September 12, 2006), "Synthesis Method for Polydimethylketene by Friedel-Craft Cationic Polymerization of Dimethylketene," Reinhard Linemann and Guillaume Le (Arkema, Puteaux, France).
His discovery of the cationic polymerization of 2-oxazolines led to international industrial research awards (R&D -- 100) for creative research in 1978 and 1986.
Cationic polymerization of tetrahydrofuran yields poly (oxytetramethylene) glycol.
Photo-initiated cationic polymerization of functionalized polysilolxanes yields highly crosslinked networks.
Produced in a process developed by BASF research known as "living cationic polymerization," Oppanol IBS is described as a new type of thermoplastic elastomer (TPE) based on styrene and isobutene; applications are said to include adhesives and sealants, compounds for consumer goods, and films.
Relatively, few studies addressing cationic polymerization for the synthesis of organic-inorganic hybrid materials have been indeed reported in the literature, reflecting its sensitivity to basic (nucleo-philic) and protic functions.
Timpe, "Kinetic Aspects of Light-Induced Cationic Polymerization," in Radiation Curing in Polymer Science and Technology, Vol.