樹枝狀高分子分子量鑑定及分析研究

在本實驗中，使用的高分子為樹枝狀高分子，其具高度分枝結構，且末端帶有16個羥基官能基。將末端官能基分別與不同莫爾數之(六亞甲基二異氰酸鹽+丙烯酸二羥乙酯)反應，以基質輔助雷射脫附游離飛行時間質譜儀分析，藉以鑑定其合成是否完成，並可再藉由紅外線光譜、膠體滲透層析儀及核磁共振儀分析，佐證基質輔助雷射脫附游離飛行時間質譜儀鑑定。另外，我們可對其作一系列的測試。探討其合成方式與分子量之間的變化，藉以了解與樹枝狀高分子在不同儀器鑑定上之差異。結果飛行時間質譜儀之鑑定可以發現到，其可協助排除樹枝狀高分在核磁共振儀圖譜之干擾，且若反應完成，其分析圖譜會具明顯之高斯分佈。另外，由於其分析時間短，樣品製備簡單，又可偵測大分子之特性，可應用於樹枝狀高分子合成鑑定分析。而所合成出之樹枝狀高分子型寡聚物中，當其支化度愈高時，其分子量與黏度成反比之關係，即分子量愈高，黏度愈低。而在光硬化動力學分析方面，也可明顯發現到，不管是轉換率或者是反應速率，樹枝狀高分子皆比傳統線型高分子高。在其應用上，可藉由應用所需，改變末端接枝官能基，利用其分子量與黏度成反比之關係，將其合成運用於所需科技。

關鍵字

樹枝狀高分子；飛行時間質譜儀；寡聚物；高斯分佈

並列摘要

In this experiment, the polymer used for the dendrimer of its highly branched structure, and the end of the Hydroxy Group with 16 functional groups. The end of the functional groups with different concentrations of (HDI+2-HEA) response to matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI/TOF-TOF) analysis, to identify their synthesis is complete, and then by by the GPC and NMR analysis, evidence of MALDI / TOF-TOF identification of feasibility. In addition, we can make a number of their tests. Way to explore the synthesis between the molecular weight changes, in order to understand and dendrimer in the identification of differences between different instruments. Results of time of flight mass spectrometry of the identification can be found that the dendritic polyester to help eliminate the interference score in the NMR spectrum, and if the reaction is completed, the analysis will map the Gaussian distribution with a significant. The synthesis of the dendrimer-type oligomer, when its higher degree of branching, its molecular weight and viscosity is inversely proportional to the relationship, that is, the higher molecular weight, lower viscosity. In the light curing kinetics analysis can also be clearly found that, regardless of the reaction rate or conversion rate, dendrimers are higher than the traditional linear polymer. In its application, may be required by applications to change the end of the grafted functional groups, using its molecular weight and viscosity is inversely proportional to the relationship, will be required for the synthesis of applied science and technology.

並列關鍵字

Dendrimer ； Time of flight mass spectrometry (MALDI / TOF-TOF) ； Oligomer ； Gaussian distribution

參考文獻

[3]陳炯達，樹枝狀高分子型光硬化樹脂之光硬化動力學及物性探討，碩士論文，台北科技大學有機高分子研究所，2005

[4]宋文清，DSC及流變儀對UV光固化樹脂之動力學研究及物性探討，碩士論文，台北科技大學有機高分子研究所，2008

[15] Matthias Seiler，Fluid Phase Equilibria，vol. 241，2006.，155-174

[19] Carola Esposito Corcione，Giulio Malucelli，Mariaenrica Frigione，Alfonso Maffezzoli，Polymer Testing，vol. 28，No 2，2009，157-164

[1]江德海，紫外光固化材料-理論與應用，北京，科學出版社，2001

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樹枝狀高分子分子量鑑定及分析研究

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