Syntheses of high molecular weight hydroxy functional copolymers by green and selective polycondensation methods.

ABSTRACT: Synthesizing hydroxy-functional linear copolymers with high molecular weights (M _n) and low branching degree (Den%) remains challenging, although there has been much headway in the area of functional copolymers. Here, we studied the effect of polymerization methods (one-step or two-step) and solvents (organic solvent: diphenyl ether or ionic liquids: [C _n mim]TF₂N/BF₄/PF₆, n = 2, 4, 6, 8, or 10) on M _n and Den% of copolymers P(OA-GA) (1,8-octanediol adipate (O-A)/glycerol adipate (G-A)). The M _n of P(OA-GA) reached up to 53 937 g mol^-1 in two-step in diphenyl ether, and the Den% of glycerol can be controlled within 30%. The physical properties of these copolymers were

SUBMITTER: Yang X 

PROVIDER: S-EPMC9049703 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature