含螺环原酸酯部分的（甲基）丙烯酸酯的热聚合和光聚合以及聚[（甲基）丙烯酸酯]的性能

Thermal- and photo-polymerization of (meth) acrylates containing a spiro ortho ester moiety and the properties of poly[(meth)acrylate]s.

作者信息

Miyazaki K, Takata T, Endo T, Inanaga A

机构信息

Department of Dental Materials and Devices, Fukuoka Dental College, Japan.

出版信息

Dent Mater J. 1994 Jun;13(1):9-18. doi: 10.4012/dmj.13.9.

DOI:10.4012/dmj.13.9

PMID:7842646

Abstract

The syntheses and polymerizations of acrylate (ASOE) and methacrylate (MASOE) containing spiro ortho ester moieties were carried out and the properties of the polymers obtained were investigated. The ring-opening reaction of the spiro ortho ester groups proceeded well during heat polymerization (HC) with the ionic initiators (BSS and HPSS). However, a small amount of unreacted carbon-carbon double bond was observed in the polymers obtained. Not only vinyl polymerization but also a small amount of ring-opening reaction took place during polymerization with radical initiators (BPO, AIBN, DTB and CQ). The poly-(MASOE)s obtained by HC with BSS, BSS/AIBN and BSS/BPO were plastic like polymers. Low volume shrinkage was observed during HC and UVLC of ASOE and MASOE with ionic initiators. These shrinkages were smaller than those of conventional methacrylate.

摘要

开展了含螺环原酸酯基团的丙烯酸酯（ASOE）和甲基丙烯酸酯（MASOE）的合成及聚合反应，并对所得聚合物的性能进行了研究。在与离子引发剂（BSS和HPSS）进行热聚合（HC）过程中，螺环原酸酯基团的开环反应进行得很顺利。然而，在所得聚合物中观察到少量未反应的碳 - 碳双键。在与自由基引发剂（BPO、AIBN、DTB和CQ）聚合过程中，不仅发生了乙烯基聚合反应，还发生了少量的开环反应。通过用BSS、BSS/AIBN和BSS/BPO进行HC得到的聚（MASOE）是类似塑料的聚合物。在用离子引发剂对ASOE和MASOE进行HC和UVLC过程中观察到低体积收缩。这些收缩比传统甲基丙烯酸酯的收缩小。