New liquid polysulfide polymer terminated with silyl group

The terminal SH of liquid polysulfide polymer was capped with a silyl group. This polymer was hydrolyzed immediately by moisture at ambient temperature and returned to the original polymer. The compounds of this new polymer and the various curing agents of the conventional polysulfide polymer became...

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Veröffentlicht in:	Journal of applied polymer science 2004-09, Vol.93 (6), p.2642-2649
Hauptverfasser:	Matsui, Tatsuro, Nakajima, Masashi, Nonaka, Toshiaki, Dokoshi, Noriaki
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences compounding curing of polymers Exact sciences and technology one-component sealants Physicochemistry of polymers Polymer industry, paints, wood polysulfides silyl group Technology of polymers
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creator	Matsui, Tatsuro Nakajima, Masashi Nonaka, Toshiaki Dokoshi, Noriaki
description	The terminal SH of liquid polysulfide polymer was capped with a silyl group. This polymer was hydrolyzed immediately by moisture at ambient temperature and returned to the original polymer. The compounds of this new polymer and the various curing agents of the conventional polysulfide polymer became moisture curable and of use as one‐component sealants and adhesives. The curing speed of these compounds is very fast compared with that of not only conventional one‐component polysulfide sealants, by more than three times, but also of other one‐component sealants at 20°C under 30% humidity. Their storage stability is good. Their cured products showed physical properties comparable to those of the two‐component polysulfide compounds. In particular, the compound of this polymer and isocyanate prepolymer showed good elasticity and good weatherability. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 2642–2649, 2004
doi_str_mv	10.1002/app.20848
format	Article
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subjects	Applied sciences compounding curing of polymers Exact sciences and technology one-component sealants Physicochemistry of polymers Polymer industry, paints, wood polysulfides silyl group Technology of polymers
title	New liquid polysulfide polymer terminated with silyl group
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