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研究生:陳彥慈
研究生(外文):Yen-TzuChen
論文名稱:團聯共聚物/接枝共聚物摻合體相行為之研究
論文名稱(外文):Phase behavior of block copolymer/graft copolymer 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:101
中文關鍵詞:團聯共聚物接枝共聚物自組裝摻合體相行為
外文關鍵詞:block copolymergraft copolymerself assemblyblendsphase behavior
相關次數:
  • 被引用被引用:1
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  • 收藏至我的研究室書目清單書目收藏:0
本研究以接枝共聚物poly(styrene-g-acrylic acid)(PS-g-PAA)摻合不同種類的團聯共聚合物形成摻合體,再藉由小角度X光散射和穿透式電子顯微鏡,了解接枝共聚物的分子結構對於摻合體微相分離結構的影響。PS-g-PAA與poly(styrene-block-acrylic acid) (PS-b-PAA)摻合時,會因為PS-b-PAA的分子量,使摻合體結構變化有所不同。當PS-b-PAA之PS鏈段太短,而PS-g-PAA中之PS無法容入時,PS-g-PAA會存在於PS-b-PAA的PAA微相區中,摻合體會因為PS-g-PAA摻合比例增加使得domain size增加;當PS-b-PAA兩鏈段分子量皆大於PS-g-PAA,會因為相同種類高分子鏈段彼此相容性較好,PS-g-PAA會存在於PS-b-PAA的界面上,此行為使得摻合體的domain size下降。
另一部分為改變高分子鏈段,使團聯共聚物只有其中一鏈段與接枝共聚物相同,此時團聯共聚物另一鏈段與接枝共聚物鏈段的相容性對於摻合體的結構有很大的影響。在PS-b-PEO/PS-g-PAA和PS-b-P2VP/PS-g-PAA中,因PEO/PAA和P2VP/PAA可產生氫鍵,摻合後會因為氫鍵作用力使接枝共聚物會存在於團聯共聚物界面上,且隨著接枝共聚物添加量增加時,摻合體的domain size下降,當摻合量更大時,接枝共聚物會破壞純團聯共聚物的微結構,使摻合體轉變為無序結構,為有序無序轉變。在PS-b-PMMA摻合系統中,因為PMMA和PAA的χ值大,其相容性很差,且彼此之間沒有作用力,因此PS-b-PMMA在摻合接枝共聚物後,接枝共聚物會聚集在一起,摻合體形成巨觀相分離。

Phase behavior of poly(styrene-g-acrylic acid) (PS-g-PAA) with different block copolymers was investigated using small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). In PS-b-PAA/PS-g-PAA blends, the morphology showed a strong of molecular weight of two copolymers. When the molecular weight of PS in PS-b-PAA is small, PS in PS-g-PAA could not be incorporated into PS in PS-b-PAA, causing the assembly of PS-g-PAA in PAA domains of PS-b-PAA. As a result, the domain size of blends increased with the content of PS-g-PAA. When the molecular weight of both domains in PS-b-PAA is larger than that in PS-g-PAA, PS-g-PAA located at the interface between PS and PAA in PS-b-PAA, resulting in the decrease in the domain size of blends.
We also investigated the effect of compatibility of PS-g-PAA and PS based block copolymers on the phase behavior of block/graft copolymer blends. In PS-b-PEO/PS-g-PAA and PS-b-P2VP/PS-g-PAA blends, the present of H-bonding between PAA and PEO, and PAA and P2VP facilitated the incorporation of graft copolymer in block copolymer. This in turn caused PS-g-PAA to locate at the interface between microdomains in PS-b-PEO or PS-b-P2VP. With an increase in the amount of graft copolymer, the domain size decreased and an order-disorder transition occurred at high graft copolymer content. On the contrary, in PS-b-PMMA / PS-g-PAA, poor miscibility of blends prevented PS-g-PAA from incorporating into the microdomains of block copolymers, causing the macrophase separation of blends upon the addition of graft copolymer.

摘要 I
Abstract II
誌謝 III
總目錄 IV
表目錄 VI
圖目錄 VIII
第一章緒論 1
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 4
2.3團聯共聚物之微相分離 6
2.4高分子混摻之微相分離 18
第三章 實驗 27
3.1藥品 27
3.2 儀器與耗材 29
3.3 實驗步驟 30
3.3-1 團聯共聚物/接枝共聚物摻合體 30
3.3-2 TEM樣品製備 30
3.4 分析儀器 33
3.4.1 小角度X光散射儀(small angle X-ray scattering, SAXS) 33
3.4.2 穿透式電子顯微鏡(transmission electron microscope, TEM) 35
3.4.3 傅立葉轉換紅外線光譜儀(fourier transform infrared spectrometer, FT-IR) 36
第四章 結果與討論 37
4.1 不同高分子鏈段對接枝共聚物PAA鏈段之χ值 37
4.2 PS-b-PAA/PS-g-PAA 摻合體 42
4.2.1 PS-b-PAA(Mn = 3500-b-23000)/PS-g-PAA 42
4.2.2 PS-b-PAA(Mn = 42000-b-4500)/PS-g-PAA 46
4.3 PS-b-PEO/PS-g-PAA 摻合體 50
4.3.1 PS-b-PEO(Mn = 40000-b-35000)/PS-g-PAA 50
4.3.2 PS-b-PEO(Mn = 58600-b-71000)/PS-g-PAA 55
4.4 PS-b-P2VP/PS-g-PAA 摻合體 60
4.4.1 PS-b-P2VP(Mn = 40500-b-40000)/PS-g-PAA 60
4.4.2 PS-b-P2VP(Mn = 73000-b-64000)/PS-g-PAA 66
4.4.3 PS-b-P2VP(Mn = 102000-b-97000)/PS-g-PAA 72
4.5 PS-b-PMMA/PS-g-PAA 摻合體 77
4.5.1 PS-b-PMMA (Mn = 40000-b-44000)/PS-g-PAA 77
4.5.2 PS-b-PMMA(Mn = 73000-b-73000)/PS-g-PAA 83
4.5.3 PS-b-PMMA (Mn = 95000-b-92000)/PS-g-PAA 88
4.6團聯共聚物摻合接枝共聚物之行為 93
結論 97
參考文獻 99

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