作者:Seohyun Kang、Hyun Kyung Moon、Hyo Jae Yoon
DOI:10.1021/acs.macromol.8b00550
日期:2018.6.12
Increased complexities in applications involving curable materials virtually need new materials that can overcome the limitations of existing ones. Resins, the structure of which is based on bisphenol A backbone terminated with three membered N-heterocycles—aziridines—have been synthesized, and their thermal-curing performance in solution and solid state was evaluated by NMR and FT-IR spectroscopies
涉及可固化材料的应用程序中日益复杂的问题实际上需要能够克服现有材料局限性的新材料。合成了以双酚A主链为基的树脂,该双酚A主链以三元N-杂环-氮丙啶为末端,并通过NMR和FT-IR光谱,差示扫描量热法评估了它们在溶液和固态下的热固化性能。 ,并进行单圈剪切强度测试,并与类似的环氧树脂(双酚A的二缩水甘油醚; DGEBA)进行比较。结果表明,该氮丙啶类树脂的化学反应性是精细可调通过控制Ñ氮丙啶的-取代基。与类似的环氧树脂相比,这些树脂可以在前所未有的温和条件下,在各种固化剂的存在下进行开环聚合反应,并显示出显着快速的固化速率,较宽的基材范围和优异的化学选择性。我们的结果证明了氮丙啶的优异固化能力,使其在材料和聚合物科学中的应用前景广阔。