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Title: Biodegradation of polymers
Authors: R, Premraj
Doble, Mukesh
Keywords: biodegradation
biodegradable polymers
Issue Date: Apr-2005
Publisher: CSIR
IPC CodeInt. Cl.7 A01N63/04; C08C; C08F10/02, 12/08, 18/08, 114/26, 120/56; C08G18/00, 63/00, 64/00, 65/00, 69/00, 69/14, 73/10
Abstract: Exhaustive studies on the degradation of plastics have been carried out in order to overcome the environmental problems associated with synthetic plastic waste. Recent work has included studies of the distribution of synthetic polymer-degrading microorganisms in the environment, the isolation of new microorganisms for biodegradation, the discovery of new degra¬≠dation enzymes, and the cloning of genes for synthetic polymer-degrading enzymes. Under ambient conditions, polymers are known to undergo degradation, which results in the deterioration of polymer properties, characterized by change in its molecular weight and other physical properties. In this paper mainly the biodegradation of synthetic polymers such as polyethers, polyesters, polycaprolactones, polylactides, polylactic acid, polyurethane, PVA, nylon, polycarbonate, polyimide, polyacrylamide, polyamide, PTFE and ABS have been reviewed. Pseudomonas species degrade polyethers, polyesters, PVA, polyimides and PUR effectively. No microorganism has been found to degrade polyethylene without additives such as starch. None of the biodegradable techniques has become mature enough to become a technology yet.
Page(s): 186-193
ISSN: 0975-0967 (Online); 0972-5849 (Print)
Source:IJBT Vol.04(2) [April 2005]

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