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Enzyme-catalyzed hydrolysis of unsaturated polyester networks. I. study of the hydrolysis of a precursor: Poly(1,2-propanediyl fumarate)

✍ Scribed by Nathalie Valiente; Thierry Lalot; Maryvonne Brigodiot; Ernest Maréchal

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 246 KB
Volume: 35
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19970115)35:1<27::aid-pola4>3.0.co;2-#

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✦ Synopsis

Hydrolytic degradation of poly(1,2-propanediyl fumarate) was carried out in mild experimental conditions using Chromobacterium viscosum lipase as catalyst. The influence of pH, temperature, enzyme concentration, and enzyme inactivation on the initial hydrolysis rate has been analyzed. Enzymatic and chemical processes were compared. This study is an introduction to the enzyme-catalyzed hydrolysis of networks based on unsaturated polyesters.

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Enzyme-catalyzed hydrolysis of unsaturated polyester networks. II. Enzyme-catalyzed hydrolysis of polyester networks prepared from poly(1,2-propanediyl fumarate)

✍ Nathalie Valiente; Thierry Lalot; Maryvonne Brigodiot; Ernest Maréchal 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 154 KB

The results obtained in Part I relative to the enzyme-catalyzed hydrolysis of poly(1,2propanediyl fumarate) are applied to the hydrolysis of the networks prepared from this polyester. The weight loss of polyester samples after 14 days of hydrolysis was correlated to the degree of crosslinking (a) de