Characterisation of microcellular foams produced from semi-crystalline PCL using supercritical carbon dioxide

被引：114

作者：

Jenkins, M. J. ^{[1
]}

Harrison, K. L.

Silva, M. M. C. G.

Whitaker, M. J.

Shakesheff, K. M.

Howdle, S. M.

机构：

[1] Univ Birmingham, Sch Engn, Birmingham B15 2TT, W Midlands, England

[2] Univ Nottingham, Sch Pharm, Nottingham NG7 2RD, England

[3] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England

来源：

EUROPEAN POLYMER JOURNAL | 2006年 / 42卷 / 11期

关键词：

PCL; DSC; SEM; CO(2); BIODEGRADABLE POLYMER; SURFACE MODIFICATION; POLYCAPROLACTONE; SCAFFOLDS; FABRICATION; BEHAVIOR; DIFFERENTIATION; CRYSTALLINITY; COMPOSITES; GENERATION;

D O I：

10.1016/j.eurpolymj.2006.07.022

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Microcellular foams were produced from polycaprolactone (PCL) using a method based on the rapid release of supercritical CO(2). The average pore size in the structure was found to vary with the selected vent time and the final microstructure was a combination of open and closed cells. Thermal analysis showed that the degree of crystallinity of all foams was in the region of 70%. This was found to be consistent with the observation of lamellar textures on the inner surface of the pores. There was also a pronounced decrease in compressive modulus with increasing vent time and average pore size. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：3145 / 3151

页数：7

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