Synthesis and Characterization of Optical Active PLA Degradable Materials

Xi Po Zhao; Tao Wu; Qiang Lin; Fei Jin; Rong Zhe Li; Shao Xian Peng

doi:10.4028/www.scientific.net/MSF.815.464

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HomeMaterials Science ForumMaterials Science Forum Vol. 815Synthesis and Characterization of Optical Active...

Synthesis and Characterization of Optical Active PLA Degradable Materials

Abstract:

An optical active Acrylate end-functionalized poly (lactic acid) (DPLA) was synthesized via melt polycondensation, with lactic acid, polyalcohol and acrylic acid as raw materials. The prepolymer products in each process were characterized by FT-IR, ¹H-NMR. The curing PLA coating (CPLA) was prepared using optical active DPLA, reactive diluent and photoinitiator. Gel fraction, thermal stability and degradation properties of the UV curing PLA coating properties were evaluated. The results show that branched structure of hydroxyl-terminated poly (lactic acid) (OHPLA) is beneficial to increase acrylic end capping rate (Da), Da ois as high as 88%. The structure of prepolymer and the performance of the coating are adjusted by changing content of polyalcohol. After crosslinking modification, degradation rate of CPLA is reduced and CPLA has better thermal stability than the pure PLA.

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Periodical:

Materials Science Forum (Volume 815)

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464-469

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https://doi.org/10.4028/www.scientific.net/MSF.815.464

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Online since:

March 2015

Authors:

Xi Po Zhao*, Tao Wu, Qiang Lin, Fei Jin, Rong Zhe Li, Shao Xian Peng

Keywords:

Degradability, Optical Activity, PLA

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* - Corresponding Author

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