Title page for etd-0727112-121439


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URN etd-0727112-121439
Author Wei-cheng Chu
Author's Email Address No Public.
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Department Materials and Optoelectronic Science
Year 2011
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Synthesis of mesoporous benzoxazine by combination of amphiphilic block copolymers and reaction-induced microphase separation
Date of Defense 2012-06-25
Page Count 75
Keyword
  • self-assembly
  • reaction-induced microphase separation
  • block copolymer
  • polybenzoxazine
  • mesoporous
  • Abstract A series of immiscible crystalline-crystalline diblock copolymers, poly(ethylene oxide)-b-(ε-caprolactone) (PEO-b-PCL), were blended with (3-phenyl-3,4-dihydro-2H-1,3-benzoxazin-6-yl) methanol (Pa-OH). FT-IR analyses provide that the ether group of PEO is a stronger hydrogen bond acceptor than the carbonyl group of PCL with the hydroxyl group of Pa-OH. Pa-OH after curing results in the excluded and confined PCL phase based on differential scanning calorimeter (DSC) analyses. In addition, the mesoporous structure was proved with the increasing the ratio of PCL to PEO in block copolymers by small angle X-ray scattering (SAXS), transmission electron microscopy (TEM) analyses and N2 adsorption-desorption isotherms (BET)
    The poly(styrene-b-4-vinyl pyridine) diblock copolymer was blended with Pa-OH monomer. FT-IR analyses demonstrate the intermolecular hydrogen bonding interaction between the pyridine group of P4VP and the hydroxyl group of Pa-OH. After curing, the block copolymers were incorporated into polybenzoxazine resin to access the nanostructure through the reaction induced microphase separation mechanism by TEM and SAXS analyses.
    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-0727112-121439.pdf
  • Indicate in-campus at 2 year and off-campus access at 2 year.
    Date of Submission 2012-07-27

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