本篇論文是利用次乙亞胺（ethylenimine，俗稱Aziridine）與丙烯酸甲酯（methyl acrylate）進行1,4-加成反應（1,4- addition），合成次乙亞胺丙烯酸酯（MAAZ）之單體化合物，再利用丙烯酸（acrylic acid）與次乙亞胺丙烯酸酯（MAAZ）進行聚合，反應過程中會先形成四級胺鹽（amine salt），在開環（ring opening）後同時含有雙鍵及二級胺，最後利用該化合物之二級胺與雙鍵會自行產生1,4-加成反應的特性，形成側鏈帶有酯基之線性聚β胺基酯聚合物（linear poly（β-amino ester）），該反應步驟利用模型反應加以佐證，模型反應之各反應物與產物均藉由紅外線光譜（IR）、核磁共振吸收光譜（NMR）、以及高解析度質譜儀（HR-Mass）進行確認，並以積分值及元素分析（EA）作比對，而線性高分子聚合物則是利用紅外線光譜觀察其官能基之變化，再用膠體層析法（GPC）測量該聚β胺基酯聚合物之分子量。 A ring-opening reaction of aziridine with carboxylic acid and containing compounds results in the formation of its amino ester bond, which was demonstrated by a model reaction. Aziridine added to vinyl bond of methyl acrylate via a Michael addition. A self-polymerization reaction occurred with poly(amino ester) bond formation and the amino group of poly(amino ester) reacted further with acrylate via a Michael reaction for the formationof propionate ester side-chain product. The new polymers were characterized by FT-IR and its resulted self-polymerized material were monitored by a gel-permeation chromatography.
