Silane-Modified Hyperbranched Polyurethane with High Strength, High Transparency, and Low Viscosity
Chunlin Ren,
Peixin Niu,
Shihu Zhang
et al.
Abstract:Silane-modified polyurethanes (SPU-MDI, SPU-IPDI, and SPU-HDI) were synthesized by reacting various isocyanates (MDI, IPDI, and HDI) with poly(ether triol), followed by siloxane capping. The branched structures and properties of these SPUs were systematically characterized and evaluated. These SPU resins, upon moisture curing, yield elastomers exhibiting excellent mechanical properties and high transmittance (>92%). Incorporating polyether tertiary alcohol into the polymer chain markedly reduces the viscosity … Show more
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