Crystal growth in poly(L-lactide) thin film revealed by in situ atomic force microscopy

被引：61

作者：

Kikkawa, Y

Abe, H

Fujita, M

Iwata, T

Inoue, Y

Doi, Y

机构：

[1] Tokyo Inst Technol, Dept Innovat & Engn Mat, Midori Ku, Yokohama, Kanagawa 2268502, Japan

[2] Japan Sci & Technol Corp, SORST Grp, Midori Ku, Yokohama, Kanagawa 2268502, Japan

[3] Riken Inst Phys & Chem Res, Polymer Chem Lab, Wako, Saitama 3510198, Japan

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2003年 / 204卷 / 15期

关键词：

atomic force microscopy; crystal growth; enzymatic degradation; in situ observation; poly(L-lactide);

D O I：

10.1002/macp.200350044

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Direct visualization of crystal growth in poly(L-lactide) thin films was carried out by using a temperature-controlled atomic force microscopy (AFM). At the initial stage of crystallization, edge-on lamellar crystals have nucleated and elongated. Subsequently, the edge-on lamellar crystals showed S-shaped morphology and changed their orientation from edge-on manner to flat-on one. The curvature of edge-on lamellar crystal has been discussed in terms of inclination and distortion of polymer chains in the crystal. In addition, mechanism on the formation of flat-on crystal from edge-on lamellae was proposed as derivative growth on the basis of in situ AFM observation of crystal growth and enzymatic degradation.

引用

页码：1822 / 1831

页数：10

共 36 条

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