Acetylated lactide oligomer-based plasticizer, method of preparing same and pla resin composition containing same
AssigneeKorea Research Institute of Chemical Technology
InventorsJihoon SHIN, Haemin JEONG, Nam-Kyun KIM, Young-Wun KIM
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Abstract
Disclosed herein is an acetylated lactide oligomer-based plasticizer and a method of preparing the same having improved thermal stability, enhanced plasticity and excellent compatibility with a resin, the method, including: (a) synthesizing a lactide oligomer through ring-opening polymerization (ROP) of an initiator and lactide; (b) putting acetic anhydride into the lactide oligomer and performing acetylation; and (c) removing acetic acid generated in step (b) and unreacted acetic anhydride
Claims12
A method of preparing an acetylated lactide oligomer-based plasticizer, comprising:
- (a) synthesizing a lactide oligomer through ring-opening polymerization (ROP) of an initiator and lactide;
- (b) putting acetic anhydride into the lactide oligomer and performing acetylation;
- and
- (c) removing acetic acid generated in step (b) and unreacted acetic anhydride.
An acetylated lactide oligomer-based plasticizer, which is manufactured by acetylating a lactide oligomer synthesized through ring-opening polymerization (ROP) of an initiator and lactide, is expressed as any one of following chemical formulas 1 to 3.
A PLA resin composition, comprising:
- a poly lactic acid (PLA) resin and any one selected from acetylated lactide oligomer-based plasticizers expressed as following chemical formulas 1 to 3.
Dependencies are inferred from the claim text.