Title page for etd-0724112-121413


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URN etd-0724112-121413
Author Wei-Hsun Hu
Author's Email Address s7555515@hotmail.com
Statistics This thesis had been viewed 5340 times. Download 432 times.
Department Materials and Optoelectronic Science
Year 2011
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Miscibility Behavior Enhancement of Polybenzoxazine/
Poly(ethylene oxide) Blend through DNA-Like Multiple Hydrogen Bonding Interaction
Date of Defense 2012-06-25
Page Count 105
Keyword
  • Blend
  • Benzoxazine
  • Hydrogen Bonding
  • Miscibility
  • Abstract We have prepared a new class of polybenzoxazine based nanocomposites through DNA-like self-complementary multiple hydrogen bonding. At first, benzoxazine containing thymine (Bz-T), PEO containing adenine (PEO-A) group and POSS containing adenine (POSS-A) have been successfully synthesized, respectively. Those chemical structures were confirmed by 1H and 13C NMR and FT-IR spectroscopies. DSC and TGA analyses showed that the Bz-T had lower cross-link temperature and higher thermostability than benzoxazine containing methyl acrylate (BZ-ac) group. Moreover, TEM and WAXD provided a new evidence for linearly structure and self-assembly polybenzoxaine through self-complementary multiple hydrogen bonding of its T units. Then, PEO-A/PBz-T and POSS-A/PBz-T hybrid materials were prepared. SAX, WAXD, TEM and AFM analyses indicated that the size of PEO domain in PBz-T matrix was significantly decreased and the new type phase separation boundary (discrete domain through non-convent bonds) was obtained. Finally, we were using WAXD, TEM, DSC and nanoindenter to study properties of POSS-A/PBz-T nanocomposite. The presence of self-assembly nano-lamellate structure and enhance the mechanical properties on thin film, because of well-dispersion of POSS in PBz-T matrix through strong hydrogen bonding between A-T interactions.
    Advisory Committee
  • Ching-Hsuan Lin - chair
  • Chih-Feng Wang - co-chair
  • Ming Chen - co-chair
  • Chih-Feng Huang - co-chair
  • Shiao-Wei Kuo - advisor
  • Files
  • etd-0724112-121413.pdf
  • Indicate in-campus at 2 year and off-campus access at 2 year.
    Date of Submission 2012-07-24

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