Improving thermal stability of biodegradable aliphatic polycarbonate by metal ion coordination
Improving thermal stability of biodegradable aliphatic polycarbonate by metal ion coordination
复制标题
通过金属离子配位提高可生物降解脂肪族聚碳酸酯的热稳定性
DOI：
10.1016/j.polymdegradstab.2008.10.021
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发表时间：
2009-02
影响因子：
5.9
通讯作者：
Zhao, Ying
中科院分区：
文献类型：
--
作者：
Yu, Tao;Chen, Erqiang;Zhou, Yong;Liu, Kaipeng;Wang, Dujin;Wang, Fosong;Zhao, Ying
聚碳酸亚丙酯（PPC）是一种典型的脂肪族聚碳酸酯，由于其可生物降解性和商业化前景，在过去的二十年里引起了人们的广泛关注。然而，这种材料作为热塑性塑料的应用受到其差的热稳定性的限制。硬脂酸钙（CaSt 2）等金属皂是塑料工业中重要的加工助剂。制备了PPC-CaSt 2复合物，并通过热重分析（TGA）研究了其热稳定性。结果表明，配合物比纯PPC材料具有更好的热稳定性。通过小角X射线散射（SAXS）、透射电子显微镜（TEM）和偏光显微镜（POM）的结合证实了配合物的超分子层状介晶结构。用傅里叶变换红外光谱（FT-IR）研究了CaSt 2与PPC柔性链的配位作用。这种配位作用对提高PPC的热性能和构筑配合物的自组织结构起着关键作用。
Poly(propylene carbonate) (PPC), a typical aliphatic polycarbonate, has attracted much attention during the last two decades due to its biodegradability and commercializing perspective. However, the application of this material as thermoplastics has been limited by its poor thermal stability. Metal soaps, such as calcium stearate (CaSt2), are important processing additives in plastics industry. In the present work, PPC–CaSt2complexes were prepared, the thermal stability of which was investigated by thermogravimetric analysis (TGA). The results show that the complexes are more thermal stable than pure PPC material. Supramolecular lamellar mesomorphous structures of the complexes were corroborated by the combination of small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM) and polarizing optical microscopy (POM). Metal ion coordination of CaSt2to flexible PPC chains was determined by Fourier transform infrared spectroscopy (FT-IR). This coordination interaction plays the key role in improving the thermal property of PPC and constructing the self-organized structure of the complexes.
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影响因子：
1.2
作者：
Ren-yuan Qian
通讯作者：
Ren-yuan Qian
影响因子：
5.9
作者：
Shuwen Peng;Y. An;Cheng Chen;B. Fei;Yugang Zhuang;Li-song Dong
通讯作者：
Shuwen Peng;Y. An;Cheng Chen;B. Fei;Yugang Zhuang;Li-song Dong
DOI：
10.1002/pol.1980.130180210
发表时间：
1980-02
期刊：
Journal of Polymer Science: Polymer Letters Edition
影响因子：
--
作者：
D. D. Dixon-D.;M. E. Ford;G. Mantell
通讯作者：
D. D. Dixon-D.;M. E. Ford;G. Mantell
影响因子：
4.6
作者：
S. Valkama;O. Lehtonen;K. Lappalainen;H. Kosonen;Pascal M. Castro;T. Repo;M. Torkkeli;R. Serimaa;G. Brinke;M. Leskelä;O. Ikkala
通讯作者：
S. Valkama;O. Lehtonen;K. Lappalainen;H. Kosonen;Pascal M. Castro;T. Repo;M. Torkkeli;R. Serimaa;G. Brinke;M. Leskelä;O. Ikkala
影响因子：
5.5
作者：
Tao Yu;Yongnian Zhou;Ying Zhao;Kaipeng Liu;E. Chen;Dujing Wang;Fo-song Wang
通讯作者：
Tao Yu;Yongnian Zhou;Ying Zhao;Kaipeng Liu;E. Chen;Dujing Wang;Fo-song Wang