Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Revelation of the Susceptibility of Microcapsule by the Control of Polymer Structure (II) -Preparation of polyurethane microcapsules with different chemical structures-

고분자구조제어에 의한 microcapsule의 감성기능발현(II) -화학구조에 따른 polyurethane microcapsule의 특성-

  • Hong, Ki-Jeong (Department of Textile Engineering, Pusan National University, Pusan 609-735) ;
  • Park, Soo-Min (Department of Textile Engineering, Pusan National University, Pusan 609-735)
  • Published : 1997.10.01
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Abstract

Polyurethane microcapsules were synthesized by interfacial polymerization in an aqueous poly(ethylene glycol) dispersion with ethylenediamine as chain extender of toluene diisocyanate in perfume oil using poly(vinyl alcohol) as the stabilizing agent. The effect of chemical structure on the average particle size and distributions, morphologies, and thermal properties to design microcapsules for the sustained release system was investigated. It came to be known that polyurethane microcapsules with ethylene diamine as chain extender had a rounder, more permeable and controlled release membranes. And the release test of polyurethane microcapsules with different soft segment content was done to certify the effect of long methylene chain. According to the higher molecular weight of polyether polyol, the release rate of microencapsulated disperse dye molecular was faster.

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References

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