By M. Johnson, L.Y. Mwaikambo, N. Tucker
The earth has finite assets when it comes to fossil foundation gas and a finite skill for disposal of waste. Biopolymers may perhaps supply an answer to either those matters within the long term. This Rapra overview document units out to envision the present tendencies in biopolymer technology. the differing kinds of organic polymers are mentioned, and the chemistry and synthesis of a few key biopolymers are defined. This evaluate is observed via over four hundred abstracts from papers and books within the Rapra Polymer Library database, to facilitate extra interpreting in this topic.
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10 refs. 2002, p3097-107 © Copyright 2003 Rapra Technology Limited CHARACTERIZATION OF POLYURETHANE FOAMS FROM SOYBEAN OIL Jouh J; Bhattacharya M; Turner R B Minnesota,University; Urethane Soy Systems The use of functionalised soy based vegetable oil polyols as replacements, or partial replacements, for synthetic polyols in the manufacture of polyurethane foams, using two different isocyanates and differing amounts of water, was investigated by fourier transform infrared spectroscopy (FTIR) to follow the polymerisation reaction, and scanning electron microscopy and small angle X-ray scattering to examine the foam morphology.
N. Oliver, Realising the economic potential of UK-grown industrial crops, ACTIN, Leatherhead, UK, 2001. 20 A. , D. , Basingstoke, 1991. U. Gerngross, Nature Biotechnology, 1999, 17, 541. 21 U. J. P. S. Lane and J. Stubbe, Biochemistry, 1999, 38, 826. 22 S. A. L. Houmiel, M. E. B. Taylor, M. E. J. A. R. Padgette, G. J. Gruys, Natural Biotechnology, 1999, 17, 1011. G. Griffith, Acta Materialia, 2000, 48, 263. L. Joseph, Construction and transfer of polyhydroxybutyrate (PHB) expression cassettes into palm via Agrobacterium tumefaciens mediated transformation, Plant Biotechnology Laboratory, School of Bioscience and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 2002.
23 refs. 63-84 A LITERATURE REVIEW OF POLY(LACTIC ACID) Garlotta D US,National Center for Agricultural Utilization Research A review is presented on the synthesis, physicochemical properties, chemistry and mechanical properties of polylactic acid from the 1950s to 1990s. Aspects covered include tensile properties, crystallisation, processing, rheological properties, UV vis and FTIR spectra and starch-polylactic acid composites. 134 refs. 871061 Item 34 Journal of Materials Science. 903-9 SELF-REINFORCEMENT AND HYDROLYTIC DEGRADATION OF AMORPHOUS LACTIC ACID BASED POLY(ESTER-AMIDE), AND OF ITS COMPOSITE WITH SOL-GEL DERIVED FIBERS Haltia A M; Lahteenkorva K; Tormala P; Helminen A; Tuominen J; Seppala J; Veittola S; Ahvenlammi J Tampere,University of Technology; Helsinki,University of Technology The self-reinforcement and hydrolytic degradation of an amorphous polyester-amide(PEA) based on lactic acid were studied and compared with those of poly-L-lactide(PLLA).