期刊
PROGRESS IN ORGANIC COATINGS
卷 55, 期 3, 页码 225-230出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2005.11.005
关键词
IPN's; thermal-UV dual cure process; acrylic monomers; oxetane monomers
In the present work, a thermal-UV dual-cure process was performed on acrylate-oxetane systems. A 1:1 molar mixture of difunctional acrylate-oxetane mixture was prepared starting from 2,2-Bis(4-(3-acryloxy-2-hydroxypropoxy)phenyl)propane (BPADA) and 3-ethyl-3-{[(3-ethyloxetan-3-yl)methoxy]methyl}oxetane (OXT-221, DOX). Following a difunctional oxetane-acrylic monomer (OXAC) was synthesized. Starting from the 1:1 molar mixture a heterogeneous IPN is generated by dual cure process: the obtained material is characterized by DMTA curves with two maximum of tan 8 peak; a broad damping effect can be expected. In the case of OXAC dual cured system a homogeneous material with no separation domain is obtained, as evidenced by a single tan delta peak in DMTA curves. (c) 2005 Elsevier B.V. All rights reserved.
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