Formation of porous matrices from lactide and ε-caprolactone copolymers in supercritical carbon dioxide medium

被引：0

作者：

P. S. Timashev

N. N. Vorobieva

N. V. Minaev

Yu. A. Piskun

I. V. Vasilenko

S. G. Lakeev

S. V. Kostyuk

V. V. Lunin

V. N. Bagratashvili

机构：

[1] Russian Academy of Sciences,Institute of Laser and Information Technologies

[2] Belarusian State University,Research Institute for Physical Chemical Problems

[3] Karpov Scientific Research Institute of Physics and Chemistry,Chemistry Department

[4] Moscow State University,undefined

来源：

Russian Journal of Physical Chemistry B | 2016年 / 10卷

关键词：

polymer foaming; supercritical carbon dioxide; lactide and ε-caprolactone copolymers; mechanical characteristics of porous polymers;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A series of lactide and ε-caprolactone copolymers containing 4–24 mol % of ε-caprolactone with 20- to 30-kDa molecular weights are synthesized. Based on them, porous materials are produced by foaming in supercritical carbon dioxide. The pore size was shown to decrease with increasing ε-caprolactone content in copolymer, while the porosity of the entire sample was not altered. The resulting pore size also decreases if 7 wt % polyethylene glycol is added to the initial monomer mixture. The Young’s modulus of the porous samples decreases with increasing ε-caprolactone content and when polyethylene glycol is added.

引用

页码：1195 / 1200

页数：5

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