Wang, Na; Wang, Xinhui; Lang, Jinyan; Hu, Zhenhua; Zhang, Heng published the artcile< Synthesis and Characterization of Hyperbranched and Organosilicone Modified Waterborne Polyurethane Acrylates Photosensitive Resin>, HPLC of Formula: 112-63-0, the main research area is hyperbranched organosilicone waterborne polyurethane acrylate photosensitive resin preparation characterization; hyperbranched; organosilicone modified; photosensitive resin; polyurethane acrylates; waterborne.
A new type of waterborne polyurethane acrylate was synthesized for use as a UV curing coating. The N,N-dihydroxy Me ethyl-3-Me aminopropanoate monomer was first prepared via adding reactions of Me acrylate and diethanol amine with Me alc. as the solvent. Then, the hyperbranched prepolymer was obtained by addition of trimethylolpropane with toluenesulfonic acid as catalyst and N,N-DMF as solvent. The resulting hyperbranched and organosilicone modified waterborne polyurethane acrylates was synthesized through the mixed reaction of prepolymer and hydroxy silicone oil, polyethylene glycol-1000, toluene diisocyanate, dimethylolpropionic acid, 1,2-propylene glycol, hydroxyethyl acrylate, and triethylamine with dibutyltin dilaurate as the catalyst. The mol. structures were characterized by FT-IR and 1H NMR spectroscopy and GPC anal. and the thermal stability was studied by using TGA. Moreover, the influence of content of hydroxyl silicone oil, dimethylolpropionic acid, polyethylene glycol-1000, and prepolymer to various of properties such as glossiness, hardness, adhesive force, abrasion resistance, water absorption, elongation at break and tensile strength of films were analyzed. The temperature and catalyst dosage impact on percent conversion of isocyanate group (-NCO) were also studied. It was proven that the best dosage of hydroxyl silicone oil and dimethylolpropionic acid were 4.6%, the dosage of polyethylene glycol-1000 was 50%, and the amount of hyperbranched prepolymer was 0.5%, which could make the film achieve the optimum properties. The percent conversion of isocyanate group (-NCO) was maximum when reacting two hours at 80°C with 0.2% catalyst.
Polymers (Basel, Switzerland) published new progress about Abrasion resistance. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics