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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and characterization of biodegradable crosslinked polymers from 5-hydroxylevulinic acid and α,ω-diols
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Synthesis and characterization of biodegradable crosslinked polymers from 5-hydroxylevulinic acid and α,ω-diols

机译：5-羟基乙酰丙酸和α，ω-二醇的可生物降解交联聚合物的合成与表征

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摘要

Novel biodegradable chemically crosslinked polymers, poly(5- hydroxylevulinic acid-co-α,ω-diol)s (PHLA-diols), were synthesized from 5-hydroxylevulinic acid and α,ω-diols and characterized by Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, and dynamic mechanical analysis. The gel content, swelling ratio, tensile properties, and hydrolytic degradation behaviors were also measured and assessed. The glass-transition temperature of the PHLA-diols could be adjusted within a wide range (-50 to 30°C) by the type and feed ratio of the diol. Because of the low glass-transition temperature and crosslink structure, they exhibited certain elastic properties. The tensile modulus, strength, and elongation at break measured at 37°C were 1.4-6.3 MPa, 0.8-1.6 MPa, and 10-25%, respectively. These polymers could be hydrolytically degraded.
机译：由5-羟基乙酰丙酸和α，ω-二醇合成了新型可生物降解的化学交联聚合物聚（5-羟基戊酸-α-ω-二醇）（PHLA-二醇），并通过傅里叶变换红外光谱，差示法进行了表征。扫描量热法，热重分析和动态力学分析。还测量和评估了凝胶含量，溶胀率，拉伸性能和水解降解行为。 PHLA-二醇的玻璃化转变温度可以通过二醇的种类和进料比在大范围（-50〜30℃）内调节。由于低的玻璃化转变温度和交联结构，它们表现出一定的弹性。在37℃下测得的拉伸模量，强度和断裂伸长率分别为1.4-6.3MPa，0.8-1.6MPa和10-25％。这些聚合物可被水解降解。

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