Lee Schechtman - Preparation, Properties, and Utilization of Biobased Biodegradable <italic>Nodax</italic>™ Copolymers

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      Publication Details (including relevant citation   information):

      Noda, Isao, Bond, Eric B., Green, Phillip R., Melik, David H.,   Narasimhan, Karunakaran, Schechtman, Lee A., Satkowski, Michael   M. 2005 900 280-291-

      Abstract: Bio-catalytic preparation, physical   and biological properties, and potential utilization of novel   Nodax™ copolymers are discussed. Nodax™ is a family of   bacterially produced polyesters comprising 3-hydroxybutyrate   (3HB) and medium-chain-length 3-hydroxyalkanoate (mcl-3HA) units.   The biosynthesis of PHA copolymers involve parallel enzymatic   production of 3-hydroxybutyryl CoA and 3-hydroxyacyl CoA units   via fatty acid biosynthesis and fatty acid oxidation followed by   enzymatic copolymerization. PHAs are fully biodegradable under   both aerobic and anaerobic conditions. The incorporation of   mcl-3HA units effectively lowers the crystallinity and Tm in a   manner similar to the effect of alpha olefins in linear low   density polyethylene. The lowered Tm well below the thermal   decomposition temperature of PHA makes this material easier to   process. The reduced crystallinity provides the ductility and   toughness required for many applications. Versatile physical   properties of Nodax™ PHA copolymers are well suited for the   production of broad ranges of articles. Furthermore, ductile PHA   can be blended with other degradable polymers like polylactic   acid to greatly enhance their properties.

      Address (URL): http://dx.doi.org/10.1021/bk-2005-0900.ch019