전기방사에 의한 재기록 가능한 자외선 응답형 폴리카프로락톤 패턴

Title
전기방사에 의한 재기록 가능한 자외선 응답형 폴리카프로락톤 패턴
Other Titles
Fabrication of Rewritable Pattern Images with Ultraviolet-responsive Polycaprolactone Electrospun Fibers
Authors
김성훈
Keywords
photochromic; spiropyran; poly; εε-caprolactone; electrospinning; electrospun fibers
Issue Date
2015-04
Publisher
한국섬유공학회
Citation
한국섬유공학회지, v. 52, NO 2, Page. 126-131
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.
URI
http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=SOGHBG_2015_v52n2_126http://hdl.handle.net/20.500.11754/23586
ISSN
1225-1089; 2288-6419
DOI
http://dx.doi.org/10.12772/TSE.2015.52.126
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ORGANIC AND NANO ENGINEERING(유기나노공학과) > Articles
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