請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/57161
標題: | 擁有不同側鏈之聚環氧樹酯 - 三唑聚合物的表面能效應 The effect on surface energy of Polyepichlorohydrin-Triazole with different side chain |
作者: | Yu-Han Chen 陳郁涵 |
指導教授: | 李篤中(Duu-Jong Lee) |
關鍵字: | 聚環氧樹酯,三唑,疊氮基,羥基,表面能, Polyepichlorohydrin,triazole,azide group,hydroxyl,surface energy, |
出版年 : | 2020 |
學位: | 碩士 |
摘要: | 表面能受分子大小和分子內構型的影響。表面能可能是透過通過添加末端羥基(極性基團)和烷烴,造成結構上產生構型上的變化,烷烴可以被誘導面相表面,從而增加向外部重組的亞甲基的鏈並造成類微胞的結構,進而降低聚環氧樹酯(PECH)-三唑聚合物的表面能。聚環氧樹酯(PECH)橡膠上的氯原子首先被疊氮基取代,然後再轉化為與含1-4個碳原子的烷基醇和含4、5、6和8個碳原子的烷烴連接的三唑基。將由此產生的聚合物塗覆到矽晶片上以形成薄膜,並通過水滴和二碘甲烷的靜態接觸角和動態接觸角來表徵。 聚環氧樹酯(PECH)-三唑-1至聚環氧樹酯(PECH)-三唑-4與水的接觸角有關。那是因為材料中的羥基會變形而朝向表面變形而與水接觸。聚環氧樹酯(PECH)-三唑-8C具有非常低的表面能16.04 mJ / m2,甚至低於PTFE。 The surface energy is influenced by the effective molecular size and the intra-molecular configurations. The surface energy was hypothesized that the surface energy of a polyepichlorohydrin (PECH)-triazole polymer can be reduced by adding an end hydroxyl group (a polar group) and alkane which can induce configuration orientation to increase the chains for methylene group reorganized to the outward of surface and causing micelle-like structure, then decrease the surface energy. The chlorine atom on PECH rubber was firstly substituted by an azide group, which was then converted to triazole groups linked with alkyl-ol that contained 1‒4 carbon atoms and the alkane that contained 4, 5, 6 and 8 carbon atoms. The polymers thus-produced were coated onto a silicon wafer to form a thin film and to characterize by static contact angles and dynamic contact angles for drops of water and diiodomethane. The PECH-triazole-1 to PECH-triazole-4 have time dependent on the contact angle of water. That was because the hydroxyl group in the material would deform to toward to the surface to contact with water. The PECH-triazole-8C have very low surface energy 16.04 mJ/m2, and even lower than PTFE. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/57161 |
DOI: | 10.6342/NTU202001740 |
全文授權: | 有償授權 |
顯示於系所單位: | 化學工程學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
U0001-2207202015563600.pdf 目前未授權公開取用 | 7.92 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。