Epoxy networks and hydrogels prepared from alpha,omega-diamino terminated poly(oxypropylene)-b-poly(oxyethylene)-b-poly(oxypropylene) and polyoxypropylene bis(glycidyl ether)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10317277" target="_blank" >RIV/00216208:11320/15:10317277 - isvavai.cz</a>
Alternative codes found
RIV/49777513:23640/15:43927389
Result on the web
<a href="http://dx.doi.org/10.1016/j.eurpolymj.2014.11.005" target="_blank" >http://dx.doi.org/10.1016/j.eurpolymj.2014.11.005</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.eurpolymj.2014.11.005" target="_blank" >10.1016/j.eurpolymj.2014.11.005</a>

Result language
angličtina
Original language name
Epoxy networks and hydrogels prepared from alpha,omega-diamino terminated poly(oxypropylene)-b-poly(oxyethylene)-b-poly(oxypropylene) and polyoxypropylene bis(glycidyl ether)
Original language description
A series of hydrophilic epoxy networks was prepared by reaction of alpha,omega-diamino terminated polyoxypropylene-b-polyoxyethylene-b-polyoxypropylene of average molar mass 2000 g mol(-1) with polyoxypropylene bis(glycidyl ether) of average molar mass 640 g mol(-1) Absence of microphase separation in the networks at ambient and higher temperatures was proved by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). Cooling of the networks to subambient temperatures induces microphase separation via crystallization: the crystallites of polyoxyethylene formed act as a reinforcing filler in the surrounding amorphous network phase. Hydrogels obtained by swelling of the networks in water deswell continuously with increasing temperature. The deswelling becomes less pronounced with increasing POE content and decreasing network density of the epoxy network. In cooling of the hydrogels to low temperatures the main part of water crystallizes. Water crystallites are dispersed in the amorphous network swollen with remaining no-crystallized water. The hydrogels prepared can found applications in sensors and actuators working in aqueous environment.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Project
<a href="/en/project/ED2.1.00%2F03.0088" target="_blank" >ED2.1.00/03.0088: Centre of the New Technologies and Materials</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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