Download e-book for kindle: Biopolymers: New Materials for Sustainable Films and by David Plackett

By David Plackett

ISBN-10: 0470683414

ISBN-13: 9780470683415

This ebook will conceal the advance and usage of polymer movies and coatings derived from non-petroleum, renewable assets from an functions point of view instead of being designed within the type of chapters within which person polymers or polymer forms are defined. it's going to additionally comprise the subject of sustainability and the way it's outlined in addition to a bankruptcy on new advancements in movie creation or coating know-how when it comes to latest expertise (e.g., nanocomposites, plasma or corona therapy expertise and lamination).

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Additional info for Biopolymers: New Materials for Sustainable Films and Coatings

Example text

The starting chemical for all types of polylactide (PLA) is lactic acid (LA), and in most cases this is lactic acid of natural origin. 1). In addition, the LA molecule possesses both carboxylic and hydroxyl functional groups, which are able to undergo inter- and intramolecular esterification reactions in polymerization processes. Features contributing to the extensive use of LA in a variety of applications and products are its preserving effect, ability to form mineral salts and its occurrence in mammalian metabolic systems [1].

2003, 86, 33–37. C. Reis, J. C. , J. Food Eng. 2008, 89, 361–369. [54] D. Demirg€ oz, C. F. , Polym. Degrad. Stab. 2000, 70, 161–170. F. J. Huang, Polymer 1995, 36, 1877–1882. [56] V. Chiono, G. Vozzi, M. , Mater. Sci. Eng. C 2009, 29, 2174–2187. C. Mariani, K. B. , Polym. Test. 2009, 28, 824–829. , Biodegradability of polymers: Regulations and methods for testing, in A. ), General aspects and special applications, Biopolymers 10, Wiley-VCH, Weinheim, Germany, pp 365–392 (2003). , Biodegradation behaviour of polymers in the soil, in C.

As a consequence it is very difficult to compare all the data in the literature. General tendencies are described in this chapter taking into account the various processing methods. 6 BIODEGRADATION OF STARCH-BASED POLYMERS According to the International Union of Pure and Applied Chemistry (1993), biodegradation can be defined as the breakdown of a substance catalyzed by enzymes in vitro or in vivo. Biodegradation of polymers is generally carried out by bacteria, fungi, and yeasts that consume organic material and return it to the environment via the carbon cycle.

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Biopolymers: New Materials for Sustainable Films and Coatings by David Plackett

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