| URN |
etd-0724112-121413 |
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| Author |
Wei-Hsun Hu |
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| Author's Email Address |
s7555515@hotmail.com |
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| Statistics |
This thesis had been viewed 5576 times. Download 482 times. |
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| Department |
Materials and Optoelectronic Science |
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| Year |
2011 |
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| Semester |
2 |
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| Degree |
Master |
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| Type of Document |
|
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| Language |
zh-TW.Big5 Chinese |
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| Title |
Miscibility Behavior Enhancement of Polybenzoxazine/
Poly(ethylene oxide) Blend through DNA-Like Multiple Hydrogen Bonding Interaction |
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| Date of Defense |
2012-06-25 |
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| Page Count |
105 |
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| Keyword |
Blend
Benzoxazine
Hydrogen Bonding
Miscibility
|
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| 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. |
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| Advisory Committee |
Ching-Hsuan Lin - chair
Chih-Feng Wang - co-chair
Ming Chen - co-chair
Chih-Feng Huang - co-chair
Shiao-Wei Kuo - advisor
|
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| Files |
Indicate in-campus at 2 year and off-campus access at 2 year. |
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| Date of Submission |
2012-07-24 |
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