臺灣博碩士論文加值系統

本研究以團聯共聚物（block copolymer）的微相分離形態為主軸，由於高分子兩鏈段本性互不相容，根據此種特性，共聚合物中相同鏈段會自我聚集(self-assembles)而產生微相分離型態（如1-D lamellae、cylinder、bicontinuous及sphere等），使得微相分離的大小侷限於分子鏈段的旋轉半徑（Rg）大小，大約介於10 ~100 nm的範圍。
研究中首先採用陰離子聚合的方法合成團聯共聚物Poly(styrene- block-isoprene)（PS-b-PI）系統，再利用摻混技術將均聚物homo- Polystyrene(hPS)與團聯式共聚物(PS-b-PI)摻合(PS-b-PI/hPS)，藉由不同的摻混比例，使相對兩分子鏈段的體積分率改變，進而得到不同的微相分離結構。
由於在PS-b-PI/hPS系統中PI主鏈段上的碳-碳雙鍵可經由臭氧化裂解，產生醛類與酮類，藉以移除PI鏈段。故將具有規則型態之PS-b-PI/hPS系統以臭氧的方式裂解，探討不同型態之摻合體對於臭氧裂解程度的關係。
藉由本研究可獲得具有圓柱狀與雙連續相之規則型態的奈米孔洞高分子薄膜，期望應用於光子晶體與分離膜等材料上。

Because of the incompatibility with the other block, each block of a diblock copolymer will be self-assembled resulting in the microphase separation in various shapes, such as lamella, cylinder, sphere, and bicontinuous. In this study the diblock copolymer of Polystyrene-block- Polyisoprene(PS-b-PI) is synthesized by a sequential living anionic polymerization with n-BuLi as the initiator. The observed sizes of microdomains are about 10~100nm which are limited by the radius of gyration(Rg) of the copolymer.
The polystyrene-block-polyisoprene(PS-b-PI) copolymer was then mixed with a variety of low molecular weight homopolystyrene(hPS) to alter its morphology. The altered morphology of the mixture(PS-b-PI/hPS) was observed to be a function of the volume fraction of PS.
Via the ozone oxidation process, carbon-carbon double bonds of PI segments were cleaved. After the removal of the cleaved PI segments nanochannels were formed in the matrix of polystyrene.

圖目錄---------------------------------------------------Ⅲ
表目錄---------------------------------------------------Ⅵ

第一章 序論---------------------------------------------1
1.1 前言--------------------------------------------1
1.2 研究大綱----------------------------------------9
第二章 文獻回顧----------------------------------------11
2.1 陰離子聚合反應----------------------------------11
2.2 團聯共聚物之微相分離型態------------------------23
2.3 團聯共聚物摻合系統之型態變化--------------------34
2.4 團聯共聚物摻合均聚物之應用----------------------40
2.4.1 光子晶體材料製備-------------------------------40
2.4.2 自組裝分離膜的製備-----------------------------42
第三章 實驗內容與儀器分析------------------------------44
3.1 實驗藥品----------------------------------------44
3.2 實驗設備與分析儀器------------------------------48
3.3 實驗步驟及方法----------------------------------50
3.4 儀器原理----------------------------------------57
第四章 結果與討論--------------------------------------67
4.1 陰離子聚合法合成Poly(styrene-block-isoprene)(PS-b-PI)
----------------------------------------------------------67
4.2 團聯共聚物(PS-b-PI)與均聚物(hPS)摻混體型態探討--73
4.3 臭氧裂解程序------------------------------------80
第五章 結論與後續研究----------------------------------101
參考文獻--------------------------------------------------103
附錄A 團聯共聚物(PS-b-PI)之GPC圖譜------------------------106
附錄B 團聯共聚物(PS-b-PI)之GPC轉換因子(F)-----------------107
附錄C FITR圖譜-------------------------------------------108
附錄D 1H NMR圖譜-----------------------------------------110

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