Novel fluorinated polymer from 18-crown-6 by radical polyaddition

Novel fluorinated hybrid polymers from tris(α-trifluoromethyl-β,β-difluorovinyl) 1,3,5-benzenetricarboxylate by radical polyaddition with diethoxydimethylsilane

“…The reaction has been applicable to a wide variety of organic compounds bearing carbon-hydrogen bonds [3]. Crown ether moiety is incorporated into polymer main chain by the reaction of BFP with 18-crown-6 in the presence of benzoyl peroxide (BPO) as a radical generator [4]. It is interesting to obtain such a polymer directly from a crown ether as a starting reagent because of 24 carbon-hydrogen bonds in the 18-crown-6 molecules which are likely to be attacked.…”

Novel fluorinated polymers by radical polyaddition: Inspiration and progress

“…The results are summarized in Table 5. 34 Soluble polymers possessing molecular weights of morethan 5 ϫ 10 4 are obtained. The gelation takes place at the lower feed ratio of 18-crown-6 to BFP.…”

Synthesis of poly[oligo(hexafluoropropylene oxide) perfluoroisopropenylether (PIPE)] graft copolymers with vinylidene fluoride (VDF) using CF3radicals

“…Specifically, Narita demonstrated that bis(α-trifluoromethyl-βdifluorovinyl) terephthalate [CF 2 =C(CF 3 )OCOC 6 H 4 COOC(CF 3 )=CF 2 ] could radically polymerize with 1,4dioxane through a radical polyaddition mechanism with cyclic ethers, using benzoyl peroxide (BPO) or with -rays to generate polymers up to 1.5x10 4 M n . 10,11 When gamma rays were used then higher molecularweight polymers were possible compared with those initiated with BPO. The Hitachi Company, utilizing this same chemistry, accomplished radical polyaddition with crown ethers for application in lithium ion secondary batteries.…”