Effect of low molecular weight poly(diethylene glycol adipate) on the crystallization behavior and mechanical properties of biodegradable poly(L-lactide) in their partially miscible blends
Effect of low molecular weight poly(diethylene glycol adipate) on the crystallization behavior and mechanical properties of biodegradable poly(L-lactide) in their partially miscible blends
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低分子量聚己二酸二乙二醇酯对部分混溶共混物中可生物降解聚L-丙交酯的结晶行为和机械性能的影响
DOI：
10.1016/j.polymdegradstab.2018.12.001
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发表时间：
2019
影响因子：
5.9
通讯作者：
Qiu Zhaobin
中科院分区：
文献类型：
--
作者：
Li Jingnan;Zhao Yuping;Jiang Zhiguo;Qiu Zhaobin
采用溶液共混法和浇铸法制备了两种可生物降解的聚L-丙交酯(PLLA)和低相对分子质量聚己二醇己二酸酯(PDEGA)共混物，聚己二醇己二醇酯(PDEGA)的质量分数分别为30和50 。热分析实验表明，PLLA和PDEGA在共混体系中部分相容。在部分相容的共混物中，加入PDEGA可明显提高PLLA的整体等温结晶速率和球晶生长速率。共混物中PDEGA没有改变PLLA的晶体结构。此外，PLLA的断裂伸长率也显著提高，表明与相对较高含量的低相对分子质量PDEGA进行简单共混可以提高PLLA的韧性。
Two biodegradable poly(L-lactide) (PLLA) and low molecular weight poly(diethylene glycol adipate) (PDEGA) blend samples were prepared through a common solution and casting method, with PDEGA contents being 30 and 50 wt% in weight ratio, respectively. The thermal analysis experiments indicated that PLLA and PDEGA were partially miscible in the blends. The blending with PDEGA obviously increased the overall isothermal crystallization rate and spherulitic growth rate of PLLA in their partially miscible blends. The crystal structure of PLLA was not modified by PDEGA in the blends. In addition, the elongation at break of PLLA was significantly increased, indicating that the toughness of PLLA may be improved through a simple blending with relatively high contents of low molecular weight PDEGA.
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影响因子：
5
作者：
Pengfei Si;F. Luo;Fahai Luo
通讯作者：
Pengfei Si;F. Luo;Fahai Luo
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影响因子：
4.6
作者：
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影响因子：
6.2
作者：
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通讯作者：
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作者：
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通讯作者：
Qiu, Zhaobin
影响因子：
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作者：
Okamoto, Kenzo;Ichikawa, Tomokazu;Yamaguchi, Masayuki
通讯作者：
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