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首页> 外文期刊>Journal of Applied Polymer Science >STUDY OF BIODEGRADABILITY OF POLY(DELTA-VALEROLACTONE-CO-L-LACTIDE)S
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STUDY OF BIODEGRADABILITY OF POLY(DELTA-VALEROLACTONE-CO-L-LACTIDE)S

机译：聚（δ-戊内酯-CO-L-丙交酯）生物可降解性的研究

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The biodegradability of poly(delta-valerolactone-co-L-lactide)s was studied both with enzymatic (lipase from Rhizopus arrhizus) and nonenzymatic hydrolyses. The hydrolyzability was evaluated by recording the amount of the hydrolyzed water-soluble products. The enzymatic hydrolysis was considerably affected by copolymer composition. The copolyester, the most susceptible to enzymatic hydrolysis, was the one containing a 90 mol % delta-valerolactone unit. The copolymers were also nonenzymatically hydrolyzed at 70 degrees C. The results were similar to those of enzymatic hydrolysis, confirming the influence of copolymer composition on the hydrolyzability. However, the L-lactide rich copolymers were more susceptible to hydrolysis. These results suggest that poly(delta-valerolactone) is easily degraded by lipase, whereas poly(L-lactide) is degraded through simple hydrolysis. (C) 1997 John Wiley & Sons, Inc. [References: 48]
机译：聚（δ-戊内酯-co-L-丙交酯）s的生物降解性都通过酶促（来自根霉的脂肪酶）和非酶促水解进行了研究。通过记录水解的水溶性产物的量来评价水解性。酶水解受共聚物组成的影响很大。最容易进行酶水解的共聚酯是含有90mol％δ-戊内酯单元的共聚酯。共聚物也在70℃下非酶水解。结果类似于酶水解的结果，证实了共聚物组成对水解性的影响。然而，富含L-丙交酯的共聚物更易于水解。这些结果表明，聚（δ-戊内酯）容易被脂肪酶降解，而聚（L-丙交酯）通过简单的水解而降解。 （C）1997 John Wiley＆Sons，Inc. [参考：48]

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