Premium
On the polymerization reactivity of fluorinated vinyl monomers
Author(s) -
Narita Tadashi
Publication year - 2000
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20000601)21:10<613::aid-marc613>3.0.co;2-d
Subject(s) - polymerization , polymer chemistry , chemistry , anionic addition polymerization , chain growth polymerization , chain transfer , monomer , ionic polymerization , living polymerization , radical polymerization , tetrafluoroethylene , diene , reversible addition−fragmentation chain transfer polymerization , reactivity (psychology) , kinetic chain length , dimethoxyethane , polymer , solution polymerization , living free radical polymerization , living anionic polymerization , organic chemistry , copolymer , medicine , natural rubber , alternative medicine , electrode , pathology , electrolyte
The polymerization reactivities of α , β , β ‐trifluorovinyl compounds (CF 2 =CF—R) and α ‐trifluoromethylvinyl compounds (CH 2 =C(CF 3 )—R) are discussed since these monomers have scarcely been investigated and hardly yielded corresponding homopolymers, although tetrafluoroethylene and chlorotrifluoroethylene have been studied under radical polymerization conditions. In the case of α , β , β ‐trifluorostyrene, a homopolymer is obtained in low yields by anionic polymerization and it is concluded that the reaction takes place without any side reactions once the reaction has started, since simple addition polymerization is observed and the molecular weight distribution is very narrow. Anionic polymerization of hexafluorobuta‐1,3‐diene is successfully achieved by the addition reaction of living end to the 2‐carbon of hexafluorobuta‐1,3‐diene followed by isomerization to produce excellently high thermostable polymers. ω ‐Trifluorovinyloxyfluoroalkyl alcohol produces a polyether via a polyaddition reaction under anionic conditions. The homopolymers of α ‐trifluoromethylacrylates are quantitatively obtained under anionic polymerization conditions. α ‐Trifluoromethylstyrene derivatives are likely to polymerize under radical conditions, but are not well‐studied. The radical polyaddition reaction of perfluoroisopropenyl esters in 1,4‐dioxane, diethyl ether or 1,2‐dimethoxyethane yields the polymers possessing the solvent moiety in the polymer main chain, respectively. It is clearly demonstrated that each fluorinated vinyl monomer discussed in this article demands its own reaction conditions. Therefore, more experimental data on the polymerization of these individual monomers is needed, including research on developing the reactions discovered in the organofluorine chemistry field to the preparation of polymers.