Study on the Influences of Domain Structure of Hydrophilic Polyurethane with Partially Crystalline on its Moisture Permeability

Heng Quan; Zhen Ya Gu

doi:10.4028/www.scientific.net/AMR.233-235.281

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 233-235Study on the Influences of Domain Structure of...

Study on the Influences of Domain Structure of Hydrophilic Polyurethane with Partially Crystalline on its Moisture Permeability

Abstract:

Multiphase, segmented polyurethanes with mixed soft segment phase were prepared from 4,4’- diphenylmethane diisocyanate (Pure MDI), polybutylene adipate (glycol) 2000 (PBA2000) and polyethylene glycol 1000 (PEG1000) with 1,4-butanediol (BDO) as the chain extender. Further more, the relationships between domain separation structure, crystallizability of soft segment and moisture permeability, hydrophilic property, phase inversion temperature (PIT) of the polyurethanes were investigated. The studies show that the chemical structure, concentration of hydrophilic soft monomers and the microphase separation degree of the mixed soft segments from hard segment domain have remarkable effects on the application properties of polyurethane.

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Periodical:

Advanced Materials Research (Volumes 233-235)

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281-287

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.233-235.281

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Online since:

May 2011

Authors:

Heng Quan, Zhen Ya Gu

Keywords:

Domain Structure, Moisture Permeability, Polyester, Polyether, Polyurethane (PU)

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