POLYSILOXANE MODIFIED EPOXY POLYMER NETWORK—II. DYNAMIC MECHANICAL BEHAVIOR OF MULTICOMPONENT GRAFT-IPNs (EPOXY/POLYSILOXANE/POLYPROPYLENE GLYCOL)

Autor: Po-Hou Sung, Chien-Yang Lin
Rok vydání: 1997
Předmět:
Zdroj: European Polymer Journal. 33:231-233
ISSN: 0014-3057
DOI: 10.1016/s0014-3057(96)00215-7
Popis: Multicomponent graft interpenetrating polymer network (IPN) elastomers composed of polyurethane, epoxy and polysiloxane were prepared by a sequential technique. Although the solubility parameters suggested phase separation, the compatibility could, nevertheless, be improved significantly by varying the polysiloxane/polyurethane ratio. Broad and high tan δ were observed from the dynamic mechanical analysis, suggesting that the multicomponent graft IPN is an effective absorbing material. © 1997 Elsevier Science Ltd. All rights reserved
Databáze: OpenAIRE