Pseudomonas Random polymers

Abbate M, MartusceUi E, Ragosta G, Scarinzi G (1991) Tensile properties and impact behaviour of poly(D(-)3-hydroxybutyrate)/rubber blends. J Mater Sd 26 1119-1125 Abe H, Doi Y (2002) Side-chain effect of second monomer units on crystalline morphology, thermal properties, and enzymatic degradability for random copolyesters of (R)-3-hydroxybutyric add with (R)-3-hydroxyalkanoic acids. Biomacromolecules 3 133-138 Abe C, Taima Y, Nakamura Y, Doi Y (1990) New bacterial copolyester of 3-hydroxyalkanoates and 3-hydroxy-co-fluoroalkanoates produced by Pseudomonas oleovorans. Polym Commun 31 404 06... 

An alternative way to mne the polymer properties and insert desired functionalities is copolymerization with different monomers. Cyclic carbonates have been copolymerized with various other cyclic monomers, such as lactones or lactides. For example, TMC was copolymerized with 5-methyl-5-benzyloxycar-bonyl-l,3-dioxan-2-one (MBC) using lipase from Pseudomonas flourescens (PF) resulting in a highly amorphous random copolymers (Fig. 8) [74]. In another smdy, 5-benzyloxy-trimethylene carbonate (BTMC) was copolymerized with 5,5-dimethyl-trimethylene carbonate (DTC) using an immobilized hpase on silica particles [79]. In the copolymerization of TMC with a lactone, m-pentadecalactone (PDL), employing Novozyme 435, highly erystalline TMC-PDL eopolymers were obtained, and as opposed to chemical catalysts, enzyme eatalyst (Novozyme 435) polymerized PDL more rapidly than TMC [80]. 

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