Synthesis and Microphase Separation of Biodegradable Poly(ε-caprolactone)-Poly(ethylene glycol)-Poly(ε-caprolactone) Multiblock Copolymer Films

Poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL) multiblock copolymers at various hydrophobic-hydrophilic ratios were successfully synthesized by the chain extension of triblock copolymers through isocyanate (hexamethylene diisocyanate). Biodegradable films were prepared...

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Bibliographic Details
Published in:Macromolecular research 2008, 16(7), , pp.609-613
Main Authors: You, Jae Ho, Choi, Sung-Wook, Kim, Jung-Hyun, Kwak, Young Tae
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Nanochemistry
Nanotechnology
Physical Chemistry
Polymer Sciences
Soft and Granular Matter
고분자공학
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Summary:Poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL) multiblock copolymers at various hydrophobic-hydrophilic ratios were successfully synthesized by the chain extension of triblock copolymers through isocyanate (hexamethylene diisocyanate). Biodegradable films were prepared from the resulting multiblock copolymers using the casting method. The mechanical properties of the films were improved by chain extension of the triblock copolymers, whereas the films prepared by the triblock copolymers were weak and brittle. Atomic force microscopy (AFM) of the multiblock copolymer film showed that the hydrophilic PEG had segregated on the film surface. This is consistent with the observed contact angle of the films.
ISSN:1598-5032
2092-7673
DOI:10.1007/BF03218568