Fibers of microbial polyesters, poly(3-hydroxy butyrate) (PHB) and poly(3-hydroxy butyrate-co-3-hydroxy valerate) (HB-co-HV) were prepared by electrospinning method. The obtained fibers were evaluated by differential scanning calorimetry, scanning electron microscopy, and oil absorption. The formation of fibers was strongly dependent on a concentration of solution. At a low concentration, the fibers contained beads which is from aggregation of polymer due to short evaporation time. The fine fibers with 2-5 mm diameter were obtained at 20 wt% concentration. The contact angle measurement showed that the fiber had higher water contact angle than the film due to the lotus-like effect. Oil absorbency showed that the fiber had higher than the film. Specially, the HB-co-HV fiber which was spinned from 20 wt% absorbed 65% oil which is much higher than that of a normal polypropylene-based oil paper.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 시약 및 재료
  2.2. 전기방사 섬유의 제조
  2.3. 분석
 3. 결과 및 고찰
  3.1. SEM 모폴로지
  3.2. 접촉각 측정
  3.3. DSC 측정
  3.4. 함유율 측정
 4. 결 론
 참 고 문 헌

• 정의습(부경대학교 고분자공학과) | Ei-sup Jang (Department of Polymer Engineering, Pukyong National University)
• 이원기(부경대학교 고분자공학과) | Won-Ki Lee (Department of Polymer Engineering, Pukyong National University) Corresponding author
• 박찬영(부경대학교 고분자공학과) | Chan-Young Park (Department of Polymer Engineering, Pukyong National University)
• 민성기(부경대학교 고분자공학과) | Sung-Kee Min (Department of Polymer Engineering, Pukyong National University)
• 장성호(부산대학교 바이오환경에너지학과) | Seong-Ho Jang (Department of Bioenvironmental Energy, Pusan National University)