High‐Shear‐Strength Waterborne Polyurethane/Acrylic Soft Adhesives. Issue 6 (28th August 2012)

• Record Type: Journal Article
• Authors: Degrandi‐Contraires, Elise; Lopez, Aitziber; Reyes, Yuri; Asua, José M.; Creton, Costantino
• Is Part Of: Macromolecular materials and engineering. Volume 298:Issue 6(2013:Jun.)
• Page Start: 612
• Page End: 623
• Publication Date: 2012-08-28
• Subjects: Plastics -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1002/mame.201200106
• Languages: English
• ISSNs: 1438-7492

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Urethane/acrylic hybrid latex particles are prepared by miniemulsion polymerization for an application as soft adhesives. The polymerization of the acrylic monomers and grafting of an isocyanate functionalized PU on a hydroxyl functionalized monomer (HEMA) take place simultaneously, resulting in a complex PU/acrylic network while avoiding any macroscopic phase separation. Its structure can be tuned by changing the extent of grafting and a specific model is applied to analyze the final polymer microstructure. The resulting materials have a low level of adhesion but display an exceptionally high resistance to shear. Two parameters are varied: the fraction of HEMA in the monomer composition and the diol concentration. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg21mh4prn" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>