2016 (4) 2

https://doi.org/10.15407/polymerj.38.04.288

The viscoelastic properties of the organic-inorganic IPN based on polyurethane, poly(hydroxyethyl methacrylate) and polу(titanium oxide), obtained by sol-gel method

 N.V. Babkina., T.V. Tsebrienko, T.T. Alekseeva

Institute of Macromolecular Chemistry of NAS of Ukraine

48, Kharkivske shose, Kyiv, 02160, Ukraine

Polym. J., 2016, 38, no 4: 288-296.

Section: Structure and properties.

Language: Russian.

Abstract:

The viscoelastic properties of organic-inorganic interpenetrating polymer networks (OI IPNs) based on the crosslinked polyurethane (PU), poly(hydroxyethyl methacrylate) (PGEMA) and poly(titanium oxide) (–TiO2–)n obtained by sol-gel method in the presence poly(oxypropylene glycol) (POPG) at various mol ratio of titanium isopropoxide (Ti(OPri)4) and water have been studied. It was shown, that the phase structure of the OI IPNs depends on the content (–TiO2–)n, and its topological structure, which is determined by the conditions of the sol-gel synthesis. The increase of poly(titanium oxide) content improves compatibility of the components in the OI IPNs. It was found that the organic-inorganic hybrid polymer system characterized by a single relaxation transition, when the content of (–TiO2–)n is 1.34 wt.%. The position and width of the relaxation transition essentially depends on the structure poly(titanium oxide). It was shown, that the crosslinking density of the OI IPNs also determined by the content and the topology of the structure poly(titanium oxide).

Keywords: organic-inorganic interpenetrating polymer networks, poly(titanium oxide), sol-gel method, viscoelastic properties, compatibility.

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