Abstract:
:Novel block copolymers using the monomers 5-(2-methoxyethyoxymethyl)-5-methyl-[1,3]-dioxa-2-one (TMCM-MOE1OM) as a hydrophilic segment and lactides as a hydrophobic segment were designed in order to prepare controllable degradation polymers by dynamic polymer rearrangement based on the hydrophilicity. When the copolymer film contacted water, the hydrophobic polylactide (PLA) segments tend to be buried under the TMCM-MOE1OM segments due to the hydrophilicity of the methoxyethoxy groups. The copolymers were hardly degraded by both proteinase K and lipase, while both of their homopolymers, poly(trimethylene carbonate) and PLA, were degraded, which suggests that the rearrangement of the TMCM-MOE1OM segments at the outermost surface significantly improved the degradation ratio.
journal_name
Macromol Bioscijournal_title
Macromolecular bioscienceauthors
Ajiro H,Takahashi Y,Akashi M,Fujiwara Tdoi
10.1002/mabi.201200143subject
Has Abstractpub_date
2012-10-01 00:00:00pages
1315-20issue
10eissn
1616-5187issn
1616-5195journal_volume
12pub_type
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