Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Preparation and Properties of Sodium Alginate/PEO and Chitosan/PEO Blend Films

알긴산 나트륨/PEO와 키토산/PEO 블렌드 필름의 제조 및 특성

  • Kang, Yeong Jeong (Department of Nano, Medical and Polymer Materials, Yeungnam University) ;
  • Kim, Eun Hyeon (Department of Nano, Medical and Polymer Materials, Yeungnam University) ;
  • Kim, Joon Ho (Department of Nano, Medical and Polymer Materials, Yeungnam University)
  • 강영정 (영남대학교 나노메디컬유기재료공학과) ;
  • 김은현 (영남대학교 나노메디컬유기재료공학과) ;
  • 김준호 (영남대학교 나노메디컬유기재료공학과)
  • Received : 2014.09.22
  • Accepted : 2014.11.30
  • Published : 2014.12.31
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Abstract

Alginates and chitosan are natural biopolymers with desirable biological properties. Sodium alginate/poly(ethylene oxide) (PEO) and chitosan/PEO blend films that are non-toxic, biodegradable, and biocompatible were prepared using the solvent casting method. The characteristics of the blend films with different blending ratios were investigated using a universal testing machine, differential scanning calorimeter, Fourier transform infrared spectrometer, contact angle apparatus (goniometer), and swelling test. The effect of the addition of a plasticizer on the swelling properties was evaluated for the chitosan/PEO blend films. With decreasing PEO content, the tensile strength of the blend film increased, but its strain decreased. The compatibility between sodium alginate or chitosan and PEO was confirmed, and the swelling properties could be controlled by the addition of a hydrophilic plasticizer. Therefore, the blending of natural polymers (with certain biological properties) with a synthetic polymer (PEO) could be a promising method to prepare biomedical materials with controllable properties.

Keywords

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