Glass transition and cold crystallization in carbon dioxide treated poly(ethylene terephthalate)
β Scribed by Yeong-Tarng Shieh; Yu-Sheng Lin
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 486 KB
- Volume
- 113
- Category
- Article
- ISSN
- 0021-8995
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π SIMILAR VOLUMES
Knowledge of the sorption rate and solubility of CO 2 in polymers are of great importance for developing technologies utilizing high-pressure and supercritical CO 2 -assisted processes. Many conventional techniques for measuring gas sorption have inherent complications when used at elevated pressure
## Abstract The effects of dissolved carbon dioxide (CO~2~) molecules on the glassβtransition temperature as well as the crystallization kinetics of poly(lactic acid) have been investigated with a novel device that combines ultrasonic and volumetric measurements. Ultrasonic parameters such as the s