McCreath, S.; Boinard, P.; Boinard, E.; Gritter, P.; Liggat, J. J. published the artcile< High clarity polyurethane laminating adhesives based on poly(propylene glycol). Effect of hard segment on microphase morphology, haze and adhesion>, Application of C19H34O2, the main research area is polypropylene glycol diisocyanate polyurethane laminating adhesive haze adhesion morphol.
A series of polyurethanes were prepared, with poly(propylene glycol) used as soft-phase due to the high clarity of this polyol and absence of carbonyl functionality, which allows for hard-phase architecture to be resolved with greater resolution In total, eight adhesives were synthesized, each contained a different chain-extender formulation to gauge what influence hard-phase architecture had on laminate haze and peel strength. This was investigated using either 4,4-methylene di-Ph diisocyanate or isophorone diisocyanate as hard-phase with trimethylolpropane as the only chain-extender or by including one of the following sterically hindered diols: 2,2-diethyl-1,3-propane diol, 1,3-butane diol or 1,2-propane diol. DSC anal. showed that microphase morphol. was strongly influenced by the diisocyanate present, as shown by the degree of phase mixing being greater in methylene di-Ph diisocyanate based formulations when compared with isophorone diisocyanate based. This resulted in higher haze values being encountered for both polycarbonate and ethanolamine surface-treated polycarbonate laminates which contained methylene di-Ph diisocyanate based formulations when compared to isophorone diisocyanate based formulations, where all values were <1.5%. International Journal of Adhesion and Adhesives published new progress about Adhesion, physical. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.
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Ester – an overview | ScienceDirect Topics