Gas solubility of carbon dioxide in poly(lactic acid) at high pressures

被引：48
|
作者：
Oliveira, NS
Dorgan, J
Coutinho, JAP
Ferreira, A
Daridon, JL
Marrucho, IM [1 ]
机构：
[1] Colorado Sch Mines, Golden, CO 80401 USA
[2] Univ Aveiro, Dept Quim, CICECO, P-3810193 Aveiro, Portugal
[3] ESTGA, CICECO, P-3754909 Agueda, Portugal
[4] Univ Pau & Pays Adour, CURS, Lab Haute Press, F-64000 Pau, France
来源：
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2006年 / 44卷 / 06期
关键词：
biodegradable polymer; high pressure; polylactic acid; quartz crystal; microbalance; sorption;
D O I：
10.1002/polb.20746
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The sorption of carbon dioxide in poly(lactic acid) (PLA) was studied by quartz crystal microbalance at high pressures. To address the effect of the D isomer present in the polymer on the gas sorption, measurements were performed in PLA with two different L:D contents, 80:20 and 98:2. New data for the solubility of carbon dioxide in PLA 80:20 and PLA 98:2 over a temperature range from 303.2 to 323.2 K and up to 5 MPa are presented. The results obtained were correlated with the dual-mode sorption model and the Flory-Huggins equation. (c) 2006 Wiley Periodicals, Inc.
引用
收藏
页码：1010 / 1019
页数：10
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