Simhadri Chakravarthi, Bi Liting, Lepage Mathieu L, Takaffoli Mahdi, Pei Zhipeng, Musolino Stefania F, Milani Abbas S, DiLabio Gino A, Wulff Jeremy E
Department of Chemistry, University of Victoria Victoria BC V8W 3V6 Canada
Materials and Manufacturing Research Institute, University of British Columbia Kelowna BC V1V 1V7 Canada.
Chem Sci. 2021 Feb 1;12(11):4147-4153. doi: 10.1039/d0sc06283a.
Motivated by a desire to develop flexible covalent adhesives that afford some of the same malleability in the adhesive layer as traditional polymer-based adhesives, we designed and synthesized two flexible, highly fluorinated bis-diazirines. Both molecules are shown to function as effective crosslinkers for polymer materials, and to act as strong adhesives when painted between two polymer objects of low surface energy, prior to thermal activation. Data obtained from lap-shear experiments suggests that greater molecular flexibility is correlated with improved mechanical compliance in the adhesive layer.
出于开发柔性共价粘合剂的愿望，这种粘合剂在粘合剂层中能提供与传统聚合物基粘合剂相同的一些柔韧性，我们设计并合成了两种柔性、高度氟化的双叠氮化合物。结果表明，这两种分子都可作为聚合物材料的有效交联剂，并且在热活化之前涂覆在两个低表面能聚合物物体之间时可作为强力粘合剂。从搭接剪切实验获得的数据表明，更大的分子柔韧性与粘合剂层中改善的机械柔顺性相关。
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