전기방사에 의한 재기록 가능한 자외선 응답형 폴리카프로락톤 패턴Fabrication of Rewritable Pattern Images with Ultraviolet-responsive Polycaprolactone Electrospun Fibers
- Other Titles
- Fabrication of Rewritable Pattern Images with Ultraviolet-responsive Polycaprolactone Electrospun Fibers
- Authors
- Shamshad Ali; Farooq Ahmed; Zeeshan Khatri; 김성훈
- Issue Date
- Apr-2015
- Publisher
- 한국섬유공학회
- Keywords
- photochromic; spiropyran; poly(ε-caprolactone); electrospinning; electrospun fibers
- Citation
- 한국섬유공학회지, v.52, no.2, pp.126 - 131
- Indexed
- KCI
- Journal Title
- 한국섬유공학회지
- Volume
- 52
- Number
- 2
- Start Page
- 126
- End Page
- 131
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/157525
- ISSN
- 1225-1089
- Abstract
- For the first time, the photochromic spiropyran dye [1’-3’-dihydro-1’,3’,3’-trimethyl-6- nitrospiro [2H-1-benzopyran-2,2’-(2H)-indole] (indole) was successfully embedded as a guest molecule into the poly(ε-caprolactone) (PCL) host polymer matrix via the electrospinning technique. The resulting PCL/Indole electrospun fibers exhibit photo-switchable properties without losing depth of color upon alternate irradiation with ultraviolet (UV) and visible light. We found that patterned color images could be recorded on the photochromic PCL/Indole electrospun fiber mats using photo-masked UV irradiation. Subsequent irradiation of the mat with visible light completely erased the recorded patterned color image. The transformation of indole from the colorless form to the colored form upon UV irradiation was confirmed by UV-visible spectrophotometry, fluorescence micrography, and water contact angle measurements. Field emissionscanning electron microscopy images revealed the smooth morphology of the PCL/Indole electrospun fibers. Additionally, the average diameter of the PCL/Indole electrospun fibers was significantly lower than that of the PCL electrospun fibers. Good to excellent ratings were achieved for the washing fastness of the PCL/Indole electrospun fiber mats.
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