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Student Number 92324027
Author Dung-Ying Tsai(蔡東穎)
Author's Email Address 92324027@cc.ncu.edu.tw
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Department Chemical and Materials Engineering
Year 2005
Semester 2
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title 非極性式poly-ip based PU 之軟質段末端改質對形態的影響
Date of Defense 2006-06-29
Page Count 134
Keyword
  • interface
  • morphology
  • segment polyurethane
  • structure and property
  • Abstract According to our research in the past years, in the systems of nonpolar-based polyurethane, we think that owing to strong force at interface, hardsegments are restrained.Therefore,we have an idea that if relaxation of interface occurs, hardsegments can pack more orderly.In 2004, Lai modified poly-ip(hydroxyl terminated polyisoprene),which end-caped with various amount of polar lactone, as new polyols.Lai further synthesized a series of nonpolar-based segment polyurethanes, which were made from the new polyols, MDI(4,4´-diphenylmethane diisocyanate) and BD(1,4-butadiol).
    In this study, we utilized TEM for direct observation of morphology of these segment polyurethanes.By analysizing a large number of micrographs, we found some changes from these nonpolar-based segment polyurethanes.For example, when hard content is 55%,the segment polyurethanes, whose soft segments are the modified poly-ip, show lamellar structure and the different departures.We combined the results of TEM with the results of DSC,DMA and tensile test,so that we could determine how the relaxation of interface affect the morphology and the properties.Finally, we also used succinic acid to modify poly-ip, as another new polyols,but that this new polyol reacted with MDI failed to form the prepolymer of segment polyurethane.
    Table of Content 第一章 序論 --------------------------------------------------------------- ----1
    第二章 文獻回顧 --------------------------------------------------------------4
    2-1熱性質 -----------------------------------------------------------------------6
    2-1-1 Tgs -----------------------------------------------------------------------6
    2-1-2 △Bs------------------------------------------------------------------------7
    2-1-3 △Cp ---------------------------------------------------------------------7
    2-1-4 Tgh -----------------------------------------------------------------------9
    2-2硬質相規則度 ------------------------------------------------------------10
    2-3 PU相分離動力學 -------------------------------------------------------12
    2-4 PU硬質段的結構組成 -------------------------------------------------13
    2-5 PU的形態與結構 -------------------------------------------------------17
    2-6界面結構、形態與機械性質----------------------------------------------18
    第三章 實驗---------------------------------------------------------------------20
    3-1實驗藥品與用品------------------------------------------------------------20
    3-2儀器設備 ------------------------------------------------------------------21
    3-3實驗步驟 ------------------------------------------------------------------21
    3-3-1 Poly-ip軟質段以diacid改質合成-------------------------------------21
    3-3-2 Suc-ip與MDI之反應測試 ------------------------------------------24
    3-3-3 以ε-caprolactone改質Poly-ip所合成PU之TEM 觀察---------25
    第四章 結果與討論 ---------------------------------------------------------28
    4-1以diacid改質之polyol所合成非極性PU的探討---------------------28
    4-1-1引言 ---------------------------------------------------------------------28
    4-1-2內容 ---------------------------------------------------------------------29
    4-1-3結論 ---------------------------------------------------------------------34
    4-2以ε-Caprolactone改質之polyol所合成非極性PU的性質探討----35
    4-2-1引言 ---------------------------------------------------------------------35
    4-2-2 FT-IR -------------------------------------------------------------------36
    4-2-3 DSC --------------------------------------------------------------------39
    4-2-3(a)Tg -------------------------------------------------------------------39
    4-2-3(b)△B -----------------------------------------------------------------40
    4-2-3(c)△Cp ------------------------------------------------------------------42
    4-2-3(d)T2 -------------------------------------------------------------------48
    4-2-3 DMA -------------------------------------------------------------------56
    4-2-4機械性質 ---------------------------------------------------------------60
    4-3 以ε-Caprolactone改質之polyol所合成非極性PU顯微像圖之探討 --------------------------------------------------------------------------62
    4-3-1 引言-----------------------------------------------------------------------62
    4-3-2 相同軟質段不同硬質段含量系列比較-----------------------------62
    4-3-2(A)PU-0-yy---------------------------------------------------------------62
    4-3-2(B)PU-2-yy---------------------------------------------------------------75
    4-3-2(C)PU-4-yy---------------------------------------------------------------83
    4-3-2(D)PU-8-yy---------------------------------------------------------------90
    4-3-3 相同硬質段含量不同軟質段系列比較---------------------------100
    4-3-3(A)PU-xx-35------------------------------------------------------------100
    4-3-3(B)PU-xx-45------------------------------------------------------------104
    4-3-3(C)PU-xx-55------------------------------------------------------------108
    4-4以ε-Caprolactone改質之polyol所合成非極性PU之性質與型態比對------------------------------------------------------------------------113
    4-4-1 引言---------------------------------------------------------------------113
    4-4-2 綜合比對---------------------------------------------------------------113
    第五章 總結--------------------------------------------------------------------125
    參考文獻 ---------------------------------------------------------------------126
    附錄------------------------------------------------------------------------------129
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    Advisor
  • Teng-Ko Chen(陳登科)
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    Date of Submission 2006-07-10

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