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研究生:高孟緯
研究生(外文):Mong-WeiGao
論文名稱:接枝共聚物/均聚物摻合物相行為之研究
論文名稱(外文):Phase behavior of graft copolymer/homopolymer blends
指導教授:羅介聰
指導教授(外文):Chieh-Tsung Lo
學位類別:碩士
校院名稱:國立成功大學
系所名稱:化學工程學系碩博士班
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:96
中文關鍵詞:相行為摻合物氫鍵接枝共聚物
外文關鍵詞:phase behaviorpolymer blendshydrogen bondinggraft copolymer
相關次數:
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  • 下載下載:3
  • 收藏至我的研究室書目清單書目收藏:0
本研究以自由基聚合法與原子轉移自由基聚合法(ATRP)合成接枝共聚物polystyrene-graft-poly(tert-butyl acrylate)(PS-g-PtBA)與polystyrene-graft-poly (acrylic acid) (PS-g-PAA),並且使用小角度X光散射(SAXS)與穿透式電子顯微鏡(TEM)觀察接枝共聚物及摻入均聚物之摻合物,其自組裝後所形成之微結構,並且利用傅立葉轉換紅外線光譜儀(FTIR)分析均聚物與接枝共聚物側鏈間之氫鍵作用力。
接枝共聚物PS-g-PAA由於PAA鏈段間之氫鍵影響,僅能形成無序之PAA圓球結構;PS-g-PtBA則可透過調整體積分率,於PS體積分率(ФPS)為62.5 %時,形成球狀結構;而ФPS為58.0 %時形成柱狀結構。於PS-g-PtBA之中摻合PtBA,當ФPS為62.5 %時,混摻物結構為柱狀;而ФPS為58.0 % 時,混摻物則為層狀結構。透過氫鍵作用力,可將原不相容之均聚物混摻入接枝共聚物之中,於ФPS為62.5 % 之PS-g-PtBA中加入少量均聚物poly(vinyl phenol)(PVPh)或poly(acrylic acid)(PAA)可使微相分離之PtBA球體變小,混摻大量均聚物則可使結構變為柱狀;在ФPS為58.0 % 之PS-g-PtBA中加入少量均聚物PVPh或PAA,可使結構變為球狀,混摻大量均聚物則可使結構變為層狀。若於PS-g-PtBA系統中混摻均聚物polyvinylpyrrolidone(PVP),則於系統中形成巨觀相分離。

The graft copolymers, polystyrene-graft-poly(acrylic acid) (PS-g-PAA) and polystyrene-graft-poly(tert-butyl acrylate) (PS-g-PtBA), were synthesized by free radical polymerization and atom transfer radical polymerization. The phase behavior of these graft copolymers and their blends was investigated using both small angle X-ray scattering (SAXS) and transmission electron microscope (TEM). Fourier transform infrared spectroscopy (FTIR) was employed to analyze the hydrogen bonding between homopolymer and PtBA in PS-g-PtBA.
It was obtained that neat PS-g-PAA could only form PAA spheres in PS matrix due to the hydrogen bonding between side chains. On the contrary, the morphology of PS-g-PtBA was tunable by changing the content of PtBA in PS-g-PtBA. When ФPS (volume fraction of PS in PS-g-PtBA) is 62.5% , PS-g-PtBA fromed a spherical structure. When ФPS is 58.0%, the copolymer formed a cylindrical structure. The blends of PS-g-PtBA (ФPS = 62.5%) and homopolymer PtBA became a cylindrical structure. The incorporation of PtBA in PS-g-PtBA (ФPS = 58.0%) caused a structural transition to a lamellar structure. We also investigated the effect of the hydrogen bonding on the phase behavior of PS-g-PtBA/homopolymer blends. When PS-g-PtBA (ФPS = 62.5%) was blended with a small amount of homopolymer poly(vinyl phenol) (PVPh) or poly(acrylic acid) (PAA), the hydrogen bonding between PtBA and homopolymer caused the reduction of the diameter of PtBA spheres. With an increase in the volume fraction of homopolymer, a structural transition to a cylindrical structure was induced. For PS-g-PtBA (ФPS= 62.5%), when they mixed with small amount of PAA or PVPh, the morphology of blends changed form spheres to lamellae with an increase in the volume fraction of homopolymer. For PS-g-PtBA/polyvinylpyrrolidone (PVP), the immiscibility of blends and lack of hydrogen bonding caused macrophase separation.

中文摘要.I
Abstract……………………………………………………………….…………….II
誌謝…………………………………………………………………………………IV
總目錄.V
表目錄 VII
圖目錄.X
第一章 緒論
 1.1 前言.1 1.2 研究動機.2
第二章 文獻回顧3
 2.1 共聚物(copolymer)3
 2.2 自組裝(self-assembly).4
 2.3 團聯式共聚物的自組裝.6
2.4團聯式共聚物/均聚物摻合物的相行為.12
2.5含氫鍵作用力之團聯式共聚物/均聚物的相行為 .15
2.6接枝式共聚物的自組裝19
 2.7接枝共聚物/均聚物摻合物的相行為.28
第三章 實驗31
3.1 藥品.31
 3.2 儀器.33
1.膠體滲透層析儀.33
2.傅立葉轉換紅外線光譜儀.34
3.核磁共振儀.35
4.小角度X光散射36
5.穿透式電子顯微鏡.37
 3.3 實驗流程及步驟.38
3.3.1 接枝共聚物PS-g-PAA之合成39
3.3.1.1 PtBA oligomer之合成.39
3.3.1.2 PtBA Macromonomer之合成39
3.3.1.3 PS-g-PtBA之合成.40
3.3.1.4將PS-g-PtBA酸化為PS-g-PAA41
3.3.2 接枝共聚物/均聚物之摻合物之製備.42
第四章 結果與討論43
 4.1接枝共聚物之合成43
 4.2接枝共聚物PS-g-PAA自組裝之探討50
 4.3接枝共聚物PS-g-PtBA / 均聚物自組裝之探討.57
   4.3.1接枝共聚物(A-g-B)/ 均聚物(B)摻合物相行為之探討.62
4.3.2接枝共聚物(A-g-B)/ 均聚物(C)自組裝相行為之探討.70
   4.3.3接枝共聚物(A-g-B)/ 均聚物(D)自組裝相行為之探討.87
第五章 結論93
參考文獻94

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