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Title page for etd-0912117-152738


URN etd-0912117-152738 Statistics This thesis had been viewed 269 times. Download 0 times.
Author Ting-Yu Chang
Author's Email Address No Public.
Department Chemical Engineering
Year 2016 Semester 2
Degree Master Type of Document Master's Thesis
Language English Page Count 71
Title Synthesis of Novel Monomers Containing Pyrenyl Group and Their Application on Photoluminescent Hydrogels
Keyword
  • Hydrogel
  • Pyrene
  • Thermosensitive
  • Photoluminescence
  • Photoluminescence
  • Thermosensitive
  • Pyrene
  • Hydrogel
  • Abstract In this thesis, two series of hydrogels exhibited well photoluminescent and thermosensitive behavior were prepared by a novel procedure. 1- Carboxylic acid pyrene (1-PCA) was synthesized through a series of reaction at first. Then esterification of 1-PCA with poly (ethylene glycol) methacrylate (PEGMA) or 2-hydroxyethyl methacrylate (HEMA) was respectively carried out to obtain 1-carboxypyrenyl poly(ethylene glycol) methacrylate (PC) or 2-(1-carboxypyrenyl) ethyl methacrylate (HC). Then, HC and PC were copolymerized with N-isopropyl acrylamide (NIPAAm) and N, N'–methylene-bis-acrylamide (NMBA) to obtain two series of the copolymeric hydrogels, PCN and HCN. The effect of HC and PC content on the swelling ratio, mechanical properties and optical properties of two series hydrogels were investigated. Besides, homo-polymers of PC and HC and the copolymers of NIPAAm with PC or HC were also prepared in this study. Their molecular weight and optical properties were also measured. Results show that higher ratio of PC and HC in the copolymeric hydrogel can effectively increase the mechanical properties of the copolymeric hydrogel and offer a well photoluminescence to the copolymeric hydrogel, at the same time, without affecting the thermosensitivity of the NIPAAm hydrogel. However, the swelling ratio would be decreased more than 1 mole% of PC and HC in the copolymeric hydrogel due to the enhancement of hydrophobic structure in PC and HC. The prepared hydrogels showed great photoluminescent properties and retained the original feature of poly (NIPAAm) hydrogel. The applications of the hydrogel will be expanded via the introduction of photoluminescent property.
    Advisor Committee
  • Wen-Fu Lee, - advisor
  • Ching-Cheng Huang - co-chair
  • Sheng-Huei Hsiao - co-chair
  • Files indicate in-campus access immediately and off-campus access at 3 years
    Date of Defense 2017-07-25 Date of Submission 2017-09-12


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