| DC 欄位 |
值 |
語言 |
| DC.contributor | 化學工程與材料工程學系 | zh_TW |
| DC.creator | 廖家陽 | zh_TW |
| DC.creator | Chia-yang Liao | en_US |
| dc.date.accessioned | 2007-7-20T07:39:07Z | |
| dc.date.available | 2007-7-20T07:39:07Z | |
| dc.date.issued | 2007 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=943204019 | |
| dc.contributor.department | 化學工程與材料工程學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 嵌段式聚氨基甲酸酯(Segmented polyurethane，PU)擁有龐大的化學結構數目與其內部特殊的微相形態，故反應出許多多變的性質，同時也複雜化了PU形態、結構和性質的關係。為此我們希望能藉由合成完全相分離的PU彈性體，來探討此微域形態與其形態變化的交互關係。
本實驗室過去曾探討水性PU(Waterborne Polyurethane)，在其結構變化與物理性質之間的關係上有重大發現，並利用穿透式電子顯微鏡由微相結構方面著手建立水性PU三個model，此水性PU特有之雙連續相網狀結構(phase separated bicontinues network structure) ，具高透明性、高拉伸剛性、高堅韌性、耐高溫，且易於加工，本實驗將以此架構續將此高分子改質成不具水溶性，依據溶液聚合法，將硬質段改質，並維持其材料特性，期望能將此高分子帶入實用之領域。
本實驗乃是利用3-二異丙氨-1,2丙二醇
(3-Diisopropylamino-1,2-propanediol)取代水性PU之DMPA，即從硬段改質油性PU，添加3-二異丙氨-1,2丙二醇形成巨大側基(Bulky group)，藉由TEM、FTIR、DSC、DMA、TGA、拉力機，探討其結
與性質。 | zh_TW |
| dc.description.abstract | Segmented polyurethane possesses enormous amount of chemical structures and its Micro-phase structure could react to form a variety of properties, hence it complicates its own as well. In order to probe into the mutual actions between its properties and compositions, we synthesize the nonpolar PU elastomer into a complete whole.
Our laboratory once looked into Waterborne Polyurethane’s structural variations and physical properties and had came out with a significant discovery. With the usage of TEM(transmission electron microscope) we built up three Waterborne Polyurethane models in micro-phase-oriented aspect, its phase separated bicontinues network structure possesses the penetrability, elasticity, tenacity, being heat-proof and facile process. The experiment is to transform Waterborne Polyurethane into fat-soluble. By taking the measure of solution polymerization, that is altering the structure of hard segment , yet maintaining its material distinction. I do expect to bring it into application in the coming future.
We utilized 3-Diisopropylamino-1,2-propanediol as substitutes for the DMPA of Waterborne Polyurethane. That is adding 3-Diisopropylamino-1,2-propanediol so as to form a bulky group, to change its structure through hard segment. Afterward we study its structures and properties with TEM, FTIR, DSC, DMA,TGA and Tensile strength. | en_US |
| DC.subject | 雙連續相分離網狀結構 | zh_TW |
| DC.subject | 水性PU | zh_TW |
| DC.subject | 嵌段式聚氨基甲酸酯 | zh_TW |
| DC.subject | phase separated bicontinues network structure | en_US |
| DC.subject | Waterborne Polyurethane | en_US |
| DC.subject | Segmented polyurethane | en_US |
| DC.title | 巨大基團對Polyurethane urea結構與性質的影響 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | The Influences of bulky group on the structures and properties of PUU | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |