5-Benzyloxy-trimethylene carbonate

Porcine pancreatic lipase 5-benzyloxy-trimethylene carbonate / 5,5 -dimethyl-trimethylene carbonate [117]... 

He, F Jia, H.L., Liu, G Wang, Y.P., Feng, J., and Zhuo, R.Z. (2006) Enzymatic synthesis and characterization of novel biodegradable copolymers of 5-benzyloxy-trimethylene carbonate with l,4-dioxan-2-one. Biomacromolecules,... 

He, F., Wang, Y., Feng,)., Zhuo, R., and Wang, X. (2003) Synthesis of poly[(5 -benzyloxy-trimethylene carbonate) -co - (5,5 - di methyl-trimethylene carbonate)] catalyzed by immobilized lipase onsilica particles... 

IPPL with different size were employed for ring-opening copolymerization of 5-benzyloxy-trimethylene carbonate (BTMC) with 5,5-dimethyl-trimethylene carbonate (DTC) in bulk (33). 

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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