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Showing 1 to 4 of 4 for “"ureasil"”.
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Triplet-Triplet Annihilation Upconversion in Solid-State Organic-Inorganic Ureasil Polymer Hosts
… on organic-inorganic hybrid polymers known as ureasils as hosts for a range of sensitizer/emitter pairs over the solar spectrum. Ureasils consist of organic poly(oxyalkylene) chains covalently linked to an inorganic siliceous network via urea bridges. A library of ureasil structures were …
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Design of high-performance luminescent solar concentrators based on aggregation-induced emitters in organic-inorganic hybrid waveguides
… hybrid materials, also known as ureasils to fabricate LSCs with improved efficiencies. In Chapter 3, the first part of this work, a green-emitting conjugated polymer (CP) with AIE characteristics was used in a di-branched ureasil (di-ureasil) at various concentrations. No ACQ was …
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Effect of silicon nano particles added to the polymeric coatings
… The sample coating for this project was bis-ureasil which was synthesized using 1:1 equivalent ratio of bis (3-trimethoxysilyl-propyl) amine (BTMSPA) (318.0g) and IPDI (52.0g) in 400g of anhydrous THF. The other coating was prepared by adding 10% nano silica particles. A scanning probe …
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Electrocaloric and barocaloric effects in organic materials
… Chapter 6 describes BC studies in ureasil polymeric materials. These compounds show large changes in entropy when transforming from liquid to solid. By exploiting a gelation method, the liquid to solid phase transition in these compounds is transformed to a gel-to-solid phase …