M. Nagata et al., SEPARATION AND ENZYMATIC DEGRADATION OF BLEND FILMS OF POLY(L-LACTIC ACID) AND CELLULOSE, Journal of polymer science. Part A, Polymer chemistry, 36(11), 1998, pp. 1861-1864
Blend films of poly(L-lactic acid) (PLLA) and cellulose with various c
omposition was prepared by casting from trifluoroacetic acid solution.
One hydroxyl group per each glucose unit was esterified by trifluoroa
cetic acid. The trifluoroacetyl group was hydrolyzed completely during
the degradation, Weight losses for 90/10 and 75/25 PLLA/cellulose ble
nds by proteinaze K were greatly increased compared with pure PLLA sam
ple due to the large depression of the crystallinity of PLLA component
, while cellulase was effective only for the degradation of pure cellu
lose film. (C) 1998 John Wiley & Sons, Inc.