Tetrahydrofuran–3,3-bis(chloromethyl)-oxetane copolymerization catalyzed by (i-Bu)3Al (original) (raw)

1967, Journal of Polymer Science Part B: Polymer Letters

TETRAHYDROFURAN-3,3-BIS(CHLOROMETHYL)-OXETANE COPOLYMERIZATION CATALYZED BY (i-Bu) ,Al* Copolymerization of tetrahydrofuran (THF) with 3,3-bis(chloromethyl)oxetane (BCMO) had been studied previously, the reactivity ratios found at different conditions are given in Table I (THF = MI, BCMO = M,). The ceiling temperature T, in THF polymerization is 7O-8O0C. (5a,b) and, therefore, the depolymerization reactions should alter the surements but from copolymer composition or ratio of monomers consumption. The dependence of the overall rate of reaction on the BCMO/THF ratio is the second problem to be discussed here. The rate dependence was studied for epichlorohydrin-THF (6) and trioxane-dioxolane pairs (7). In the first c a s e the more basic monomer was slower in homopolymerization, for the latter the opposite took place. The copolymer i s , a s a rule, enriched by the more basic monomer (8). reactivity ratios" if they are not determined directly from kinetic mea

Sign up for access to the world's latest research.

checkGet notified about relevant papers

checkSave papers to use in your research

checkJoin the discussion with peers

checkTrack your impact