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  • 學位論文

聚酯支鏈含量對聚氨基甲酸酯形態影響之研究

Effect of -CH3 side-chain content of polyester on the morphology of polyurethane

指導教授 : 余子隆
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摘要


本研究是由二異氰酸鹽(MDI;4,4-diphenylmethane diisocyanate)與丁 二醇(1,4-butanediol)分別與五個不同支鏈含量的聚酯(polyester) 聚合而成一系列的聚氨基甲酸酯(polyurethane;PU)。探討聚酯支鏈的 含量變化對PU的結晶度形態學與熱穩定性,以及在機械性質上的影響。我 們使用微差掃描熱分析(DSC; Differential Scanning Calorimetry) 、小角度X光散射分析(SAXS ;Small Angle X-ray Scattering)觀察 PU soft segment、hard segment之“相“分離及物理微細結構( microstructure);而熱穩定性則以熱機械分析(TMA; Thermomechanical Analysis)測定;我們亦在不同溫度退火( annearling)狀況下,以DSC及TMA觀察在不同退火溫度聚酯支鏈含量對PU 硬鏈節結晶度之影響。

並列摘要


Polyester based polyurethanes were synthesized from MDI(4,4''- Methylene bis(phenyl isocyanate))with butanediol as a chain extender. The polyesters with various mole ratios of -CH3 side chain were synthesized from adipic acid and glycols which were mixtures of various mole ratios of hexanediol and 1,2- propanediol. The effect of -CH3 content of polyester on the crystallinity、morphology 、thermal stability of polyurethanes and physical properties and mechanical properties of polyurethanes and on the phase segregation of soft- and hard- segments of polyurethanes was studied by DSC(differential scanning calorimetry)and TMA(thermal mechanical analysis)and SAXS(Small Angle X-ray Scattering). And the effect of -CH3 content of polyester on the crystallinity of hard segment and physical properties of polyurethanes at several annealing temperatures was studied by DSC(differential scanning calorimetry)and TMA(thermal mechanical analysis).

並列關鍵字

Polyurethane DSC SAXS TMA

被引用紀錄


陳焜山(1997)。I 奇數及偶數碳聚酯型聚氨基甲酸酯物理性質 II 交聯聚氨基甲酸酯物理性質〔碩士論文,元智大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0009-0112200611352854
蔡金龍(2000)。交聯聚氨基甲酸酯及液晶型聚氨基甲酸酯物理性質研究〔碩士論文,元智大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0009-0112200611292994
陳俊雄(2002)。交聯聚氨基甲酸酯及硬段含液晶分子聚氨基甲酸酯形態研究〔碩士論文,元智大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0009-0112200611314508
張標富(2003)。主鏈含液晶分子之聚氨基甲酸酯物理性質〔碩士論文,元智大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0009-0112200611314630
范孝明(2004)。PU樹脂添加奈米SiO2/TiO2之性能提升研究〔碩士論文,元智大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0009-0112200611334159

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