1,3-Propanediol → HCID 131716352, compound

Participants

Reaction Steps

The copolymer (Co—P4) was prepared following the teaching of U.S. Pat. No. 6,342,065 by the two-step copolymerization of l-lactide with trimethylene carbonate in the presence of 1,3-propanediol and stannous octanoate as the initiator and catalyst, respectively. The polymer was isolated, ground, dried, and heated above 80° C. under reduced pressure to remove residual monomer. The polymer was characterized for identity (IR), thermal properties (DSC), and molecular weight by GPC (CH2Cl2). The polymer was shown to have a Tm=166° C. and Mw=160 kDa. The copolymer was then compression molded into a 0.1 mm-thick film at 180° C.

Provenance & Evidence