PREPARATION AND CHARACTERIZATION OF FOUR ARMED STAR POLYLACTIC ACID WITH PORPHYRIN CORE

Jian-zhong Li; Fei Jiang; Xiao-bo Wan

doi:10.3724/SP.J.1105.2012.12054

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PREPARATION AND CHARACTERIZATION OF FOUR ARMED STAR POLYLACTIC ACID WITH PORPHYRIN CORE

Research Article | 更新时间：2021-03-19

- PREPARATION AND CHARACTERIZATION OF FOUR ARMED STAR POLYLACTIC ACID WITH PORPHYRIN CORE
- Acta Polymerica Sinica Issue 11, Pages: 1314-1318(2012)
- 作者机构：
  
  中国科学院青岛生物能源与过程研究所,青岛,266101
- 作者简介：
- 基金信息：
- DOI：10.3724/SP.J.1105.2012.12054
  CLC：
- Published：20 November 2012，
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Jian-zhong Li, Fei Jiang, Xiao-bo Wan. PREPARATION AND CHARACTERIZATION OF FOUR ARMED STAR POLYLACTIC ACID WITH PORPHYRIN CORE. [J]. Acta Polymerica Sinica (11):1314-1318(2012)
DOI：

Jian-zhong Li, Fei Jiang, Xiao-bo Wan. PREPARATION AND CHARACTERIZATION OF FOUR ARMED STAR POLYLACTIC ACID WITH PORPHYRIN CORE. [J]. Acta Polymerica Sinica (11):1314-1318(2012) DOI： 10.3724/SP.J.1105.2012.12054.

摘要

利用本体聚合方法

采用辛酸亚锡为催化剂

四氨基苯基卟啉为引发剂

引发丙交酯开环聚合

制备四臂星型聚乳酸功能高分子材料.采用1H-NMR

FTIR

GPC等对星型聚合物的分子结构、分子量及其分布等进行了研究.利用溶液浇铸成膜方法

制备了聚乳酸薄膜材料;并利用XRD方法

研究了聚乳酸薄膜的结构.研究表明

利用四氨基苯基卟啉为引发剂

合成了以卟啉为核的四臂星型聚合物

其溶液浇铸薄膜具有正交晶系晶型结构

而线型聚乳酸呈非晶态结构.利用紫外可见吸收光谱研究了星型聚乳酸的光谱性质

结果表明合成聚合物具有锡卟啉的光学特性.

Abstract

Star poly(lactic acid)was successfully synthesized via bulk ring opening polymerization of lactide using meso-tetra(p-aminophenyl)porphyrin (TAPP)as initiator and stannous octanoate (Sn(Oct)2)as catalyst under vacuum.Molecular structure of the four armed poly(lactic acid)was characterized via 1H-NMR and FTIR.It was confirmed that the star poly(lactic acid)was comprised with four-armed polymer chain and a tin porphyrin core.The molecular weight was also studied via GPC and 1H-NMR

and molecular weight distribution was also characterized (Mw/Mn=1.97).Both star poly(lactic acid) film and linear poly(lactic acid) film were prepared using solution-casting method.Structural analysis via X-ray diffraction indicates that the star poly(lactic acid)films display the orthorhombic -crystalline form

while linear poly(lactic acid)films display amorphous structure.The photoelectron study of the functional poly(lactic acid) via UV-Vis absorption spectra reveals that the star poly(lactic acid)displays photoelectric property of tin porphyrin.

关键词

星型聚合物卟啉聚乳酸开环聚合

Keywords

Star polymerPorphyrinPolylactic acidRing opening polymerization

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Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology

School of Materials Science and Engineering, East China University of Science and Technology

College of Chemistry and Chemical Engineering, Central South University

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College of Chemical Engineering, Qingdao University of Science and Technology

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