By M. Johnson, L.Y. Mwaikambo, N. Tucker
The earth has finite assets when it comes to fossil beginning gas and a finite ability for disposal of waste. Biopolymers might provide an answer to either those matters within the long term. This Rapra evaluation record units out to ascertain the present traits in biopolymer technological know-how. the different sorts of organic polymers are mentioned, and the chemistry and synthesis of a few key biopolymers are defined. This evaluation is observed by means of over four hundred abstracts from papers and books within the Rapra Polymer Library database, to facilitate additional studying in this topic.
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Additional info for Biopolymers
22 refs. 44 NOVEL BIOTECH ROUTE TO POLYTHIOESTERS Wood A Researchers from the University of Muenster and McGill University say that they have developed a biotech route to polythioesters, a novel class of biodegradable polymers. They have improved properties compared to polyoxoesters, an analogous family of biotech-derived polymers originally known as Biopol, which are used mainly in medical applications. The polythioesters have potential for use in similar high-value applications, say the scientists.
Starch is a renewable degradable carbohydrate biopolymer that can be purified from its various sources by environmentally sound processes. Thermoplastic starch formation is based on three basic approaches: starch is blended with synthetic polymers or with other biodegradable polymers; thermoplastic polymer chains are grafted onto starch or starch is chemically modified; or starch behaves as a solitary thermoplastic material. 12 OVERVIEW OF THE FIELD OF NATURAL ADHESIVES Smith R W ChemQuest Group Inc.
R. M. W. C. Fuller, Macromolecule Rapid Communications, 1994, 15, 447. 13 C. , S. Gerald and D. Gilead, Chapman and Hall, Cambridge, 1995. 14 R. Narayan, S. Bloembergen and A. , assignee; US Patent 5869647, 1999. 15 R. J. L. Willet, AOCS Press, Champaign, Illinois, 2002. 16 E. Fredon, R. Granet, R. Zerrouki, P. Krausz, L. F. Thibault, J. Rosier and Petit, Carbohydrate Polymers, 2002, 49, 1-12. 17 M. Vincendon, Journal of Applied Polymer Science, 1998, 67, 455. 18 S. Sun and P. Seib, Biodegradable plastics from wheat starch and polylactic acid (PLA), Biomaterial Processing Engineering, Department of Grain Science and Industry, Kansas State University, 2001.