Lewinski, Piotr; Kaluzynski, Krzysztof; Pretula, Julia; Mielniczak, Grazyna; Penczek, Stanislaw published the artcile< Catalysis in polymerization of cyclic esters. Catalyst and initiator in one molecule. Polymerization of lactide>, Related Products of 112-63-0, the main research area is lactide ring opening polymerization catalyst.
Poly(L-lactide) (PLA) was synthesized with initiator and catalyst in one mol. (CINICAT): 5-ethyl-2-hydroxy-5-hydroxymethyl-1,3,2-dioxaphosphorinane-2-oxide (GM). Polymerizations were conducted at the relatively high temperature (170-190°C) because of the low basicity of LA. Nevertheless, the studied processes were found to be living/controlled, no side reactions were determined and only PLA with fragments of GM as the end-groups were detected. PLA with Mn up to ∼40·103 g/mol. Kinetic studies indicated second order dependence of the rate of polymerization on the initial concentration of the CINICAT. This result is suggesting activation of the monomer and propagation with two independent macromols.
Journal of Catalysis published new progress about Cationic ring-opening polymerization. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics