廖文彬2006-07-252018-06-282006-07-252018-06-282000http://ntur.lib.ntu.edu.tw//handle/246246/12366利用碳簇[60]為核心,並以線性之聚胺酯作為支鏈可以成功地合成出新型式之星狀聚胺酯聚合物。在聚合物的鬆弛行為上,分子結構對聚合物鬆弛運動的影響會藉由活化能表現出來,其中星狀聚合物會有較高的運動活化能。同時星狀物的核心對分子運動的影響,也會表現於分子間或分子內的運動中,傳統三分支與四分支星狀聚胺酯在玻璃轉移區的鬆弛運動所需的活化能是相同的。同時HN 方程式中的參數α和αβ則有明顯的差異。Fullerene-based star polyurethanes were synthesized. The relaxation of Fullerene-based star polyurethanes can be fitted successfully utilizing Havriliak-Negami (HN) function. The activation energy of glass-transition for star polyurethane was larger than it for linear polyurethane. The parameters, a and ab of HN function for the star polyurethane were quite different from it for linear polyurethane.application/pdf133138 bytesapplication/pdfzh-TW國立臺灣大學材料科學與工程學研究所碳簇基衍生星狀聚合物之介電鬆弛行為reporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/12366/1/892216E002013.pdf