Titlebook: Biorelated Polymers; Sustainable Polymer Emo Chiellini,Helena Gil,Maarten Zee Book 2001 Springer Science+Business Media New York 2001 Biop

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on sustainable technology. For optimal R&D achievements and hence benefits from these market opportunities, it is essential to combine the expertise available in the vast range ofdifferent disciplines in biopolymer science and technology. The International Centre of Biopolymer Technology - ICBT - h

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Patrick Widler,W. Christian Bussoduced by many eukaryotic or prokaryotic microorganisms, or polyhydroxyalkanoates stored intracellularly as reserve products for carbon and energy in a variety of bacteria. In order to lower production costs for these biopolymers, continuous processes have to be designed for the future.

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Leadership is a Matter of Life and Deathike oscillations on substrate feeding or on oxygen supply. The yield on PHA produced by activated sludge submitted to these dynamic conditions reach values comparable to those obtained .by the pure cultures, being the first process less cost intensive than the last one. The chain length of the polymer produced in both processes is similar.

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Leadership in einer sich wandelnden Welt,ng this are the range of monomers that can be polymerized, and the favourable rates of polymerization obtained for these monomers. The number of papers dealing with the exciting synthetic aspects of these initiators is rapidly increasing. A historic overview of the developments in this area is presented in this paper.

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An Original Method of Esterification of Cellulose and Starchsalts (soap) were used as both catalyst and emulsifying agent. Reaction conditions were optimized using an experimental design. Starch and cellulose octanoates were obtained having a DS of 0.52 and 0.23 with a recuperation yield of 70 and 85 %, respectively. Both polysaccharide esters showed a marked hydrophobic character.

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Polyhydroxyalkanoates Production by Activated Sludgeike oscillations on substrate feeding or on oxygen supply. The yield on PHA produced by activated sludge submitted to these dynamic conditions reach values comparable to those obtained .by the pure cultures, being the first process less cost intensive than the last one. The chain length of the polymer produced in both processes is similar.

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Leadership in turbulenten Zeitens for improvement of existing and development of future fermentation processes. A strong dependence of the molecular weight distribution of the polymer on the main carbon source used in the fermentation was also found.