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Biodegradation biodegradable polymers with

Certain bacterial species produce polymers of y-hydroxybutyric acid and other hydroxyalkanoic acids as storage polymers. These are biodegradable polymers with some desirable properties for manufacture of biodegradable packaging materials, and considerable effort is being devoted by ICI Ltd. and others to the development of bacterial fermentation processes to produce these polymers at a high molecular weight (66). [Pg.517]

Kohn, J., Niemi, S. M., Albert, E. C., Murphy, J. C., Danger, R., and Fox, J. G., Single step immunization using a controlled release, biodegradable polymer with sustained adjuvant activity, J. Immunol. Meth., 95. 31-38, 1986. [Pg.228]

Eilm products with good mechanical characteristics are only obtained if thermoplastic, plasticized starch has been used. If no plasticizer is used, biodegradable polymers with limited mechanical properties will be obtained. In this case, coextmsion with the base polyester or another polymer is the way to upgrade the mechanical and/or moisture barrier properties (for comparison see Table 6). [Pg.108]

Table 10 Material properties of different biodegradable polymers with respect to applications... Table 10 Material properties of different biodegradable polymers with respect to applications...
Kricheldorf HR (2004) Biodegradable polymers with variable architectures via ring-expansion polymerization. J Polym Sci A Polym Chem 42 4723-4742... [Pg.209]

Pitt CG, Gu Z-H, Ingram P, Hendren RW (1987) The synthesis of biodegradable polymers with functional side chains. J Polym Sci A Polym Chem 25 955-966... [Pg.215]

There is also US research interest in using pectin in polymer applications. Pectin is a complex plant cell wall heteropolysaccharide (based on galactose, rhamnose, arabinose and xylose) that can be blended with synthetic polyvinyl alcohol (PVA) to produce biodegradable polymers with a wider range of properties than those of starch-based polymers alone. The new pectin/PVA biodegradable polymer should be capable of replacing conventional PVA applications in blow-moulded, extruded, film and injection-moulded applications. [Pg.34]

Development of biodegradable polymers with flame retardant properties that can be used for consumer electronics product housing. [Pg.7]

Western Europe is the leading market for biodegradable polymers with 59% of market volumes in 2005, followed by North America with 22% and Asia Pacific with 19%. Western Europe is also forecast to show the fastest growth rate for biodegradable polymers over the period 2005-2010. [Pg.42]

Starch-based materials represent the largest class of biodegradable polymer with 44,800 tonnes (including loose-fill foam packaging) consumed in 2005. Excluding loose-fill, starch-based materials amounted to 21,700 tonnes in 2005. Polylactic acid (PLA) is the second largest material class with 35,800 tonnes in 2005, followed by synthetic aliphatic-aromatic copolyesters with 14,000 tonnes. The embryonic PHA category amounts to around 250 tonnes. [Pg.42]

Philip, S., Keshavarz, T., Roy, I. (2007). Polyhydroxyalkanoates Biodegradable polymers with a range of applications. Jourrml of Chemical Technology and Biotechnology, 52(3), 233-247. [Pg.725]

Jeong B, Kibbey MR, Birnbaum JC, Won Y-Y, Gutowska A. Thermogelling biodegradable polymers with hydrophilic backbones PEG-g-PLGA. Macromolecules 2000 33 8317-8322. [Pg.272]

Natural biodegradable polymers with tailor-made properties offer excellent opportunities for advanced functional materials, e.g., biodegradable conductive nanocomposites based on polypyrrole (Ppy)/dextrin or PANI/dextrin provide enhanced conductive and antibacterial activities. [Pg.280]

SOG Soga, O., Nostrum, C.F. van, and Hennik, W.E., Poly[A-(2-hydroxypropyl)meth-aeiylamide mono/dilactate] A new class of biodegradable polymers with tuneable thermosensitivity. Biomacromolecules, 5, 818, 2004. [Pg.245]

A solution to this problem would be to reduce unnecessary usage of plastics and to recycle used plastic materials. These conservational efforts could be further aided by replacing some pefrochemical-based plastics with biodegradable material possessing similar properties. One such potential candidate is PHA. This biodegradable polymer with thermoplastic properties is an ideal substitute for conventional plastics. [Pg.101]

Philip S, Keshavarz T, Roy I (2007) Polyhydroxyalkanoates biodegradable polymers with a range of applications. J Chem Technol Biotechnol 82 233-247 Pierce L, Schroth MN (1994) Detection of pseudomonas colonies that accumulate poly-beta-hydroxybutyrate on Nile blue medium. Plant Dis 78 683-685 Pijuan M, Casas C, Baeza JA (2009) Polyhydroxyalkanoate synthesis using different carbon sources by two enhanced biological phosphorus removal microbial communities. Process Biochem 44 97-105... [Pg.121]

Conventionally and Chemically Synthesized Biodegradable Polymers with Monomers Obtained from Agro-Resource... [Pg.192]


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