介晶双丙烯酸酯在全息干涉光场中的指向性交联

摘要

Orientated acrylate-based polymer networks are produced in holographic field. The mesogenic groups of the diacrylate monomers in the isotropic phase are aligned locally by the holographic field and the polymerization of the monomers is then carried out in situ to lock up the orientational order. The holographic irradiation, created by means of two-beam-interfero-metry, acts double as the driving force to align mesogenic groups and the optical source for initiating the crosslinking of acrylate end groups.%通过在全息光场中聚合双丙烯酸酯形成具有指向性的分子网络,所需全息辐射光场由双光束干涉方法产生.在全息光场作用下,处于各向同性状态中的双丙烯酸酯单体中的介晶分子团被局域定向,通过原位聚合具有指向状态的单体而形成高分子网络从而将该指向秩序锁定.在此过程中,全息辐射同时具有两个功能:既提供促成介晶分子团形成指向秩序的驱动力,又是启动终端丙烯酸双键进行交联所需的光辐射.