具尿嘧啶之氧代氮代苯并環己烷之合成及性質

Abstract

Polybenzoxazine(PBZ)是新型開發之加成聚合的酚醛樹脂，具有很多廣泛的特性，可以克服許多傳統酚醛樹脂的缺點。從許多文獻中，我們得知benzoxazine (BZ)的改質，可透過導入各種不同的官能基進入到benzoxazine的分子結構來改進其性質，或者利用不同的benzoxazine單體進行混摻，可以降低聚合溫度、提昇熱穩定性。

本研究係以新型benzoxazine單體合成為研究主體，成功地合成Uracil based benzoxazine單體(簡稱UBZ)，具有可形成多點式氫鍵作用力之官能基，為一全新開發之材料。 DSC及IR分析指出於BZ中摻入UBZ，uracil形成之自身氫鍵作用力，可影響整體開環聚合之溫度，造成開環聚合溫度下降之效果。。透過TGA及抗菌性試驗，可得知，PUBZ相較於以往傳統之PBZ，除仍具有一定之熱穩定性外，uracil官能基之導入，使其有機會應用於生物相關領域，為benzoxazine之應用開拓新方向。

Polybenzoxazine is an addition polymerized phenolic resin, having a wide range of interesting features and the capability to overcome several shortcomings of conventional novolac and resole type phenolic resins. In many literatures, we learned that the properties of polybenzoxazines can be tuned by inducing different functional groups into the molecular structure of benzoxazine. In this thesis, a new benzoxazine monomer, uracil based benzoxazine (UBZ), possessing multiple hydrogen bonding interaction sites was successfully prepared. By inducing UBZ to BZ, the self-complementary interaction within uracil would result in relatively lower ring-opening polymerization temperature. In addition, the anti -bacterial test indicated that PUBZ had the potential for biological application.