2012 Fiscal Year Final Research Report
Precise Synthesis and Applications of Branched Poly(lactic acid)
| Project/Area Number |
21350124
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Osaka University |
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Principal Investigator |
UYAMA Hiroshi 大阪大学, 大学院・工学研究科, 教授 (70203594)
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| Co-Investigator(Kenkyū-buntansha) |
TSUJIMOTO Takashi 大阪大学, 大学院・工学研究科, 助教 (90425041)
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| Project Period (FY) |
2009 – 2012
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| Keywords | ポリ乳酸 / 可塑剤 / 結晶核剤 / 分岐ポリマー / バイオマス / バイオプラスチック / ヒマシ油 / 微生物産出ポリエステ |
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| Research Abstract |
Precise synthesis of hyperbranched poly(lactic acid)s (branched polyesters) from renewable resources and their applications have been examined. For the branched polyesters with the core of castor oil and the branch of poly(lactic acid), their precise synthesis was achieved by using lactic acid and lactide as monomer. The molecular weight and the thermal properties of the branched polyesters were controlled by the feed ratio of lactide and castor oil. Terminal functionalization of the branched polyesters was made for their applications. Physical properties ofbiomass plastics such as poly(lactic acid) and bacterial polyester were efficiently improved by the addition of only a small amount of these branched polyesters derivatives.
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