News Column

New Findings on Chemical Engineering from University of Minnesota Summarized (Hot-Melt Pressure-Sensitive Adhesives Containing High Biomass Contents)

August 20, 2014

By a News Reporter-Staff News Editor at Journal of Engineering -- Current study results on Chemical Engineering have been published. According to news reporting out of St. Paul, Minnesota, by VerticalNews editors, research stated, "A hot-melt pressure-sensitive adhesive (PSA) was generated containing a high content of renewable biomass. The polymer is based on a commercial hot-melt acrylic formulation containing primarily 2-ethylhexyl acrylate (EHA)."

Our news journalists obtained a quote from the research from the University of Minnesota, "The new polymer is synthesized with a majority of the EHA replaced with a macromonomer (MM) prepared with L-lactide and epsilon-caprolactone via catalyzed bulk ring-opening polymerization using N-hydroxyethyl acrylamide as the initiator. Incorporation of the MM into the polymers was confirmed via proton NMR The properties and adhesive performance of the new polymer were compared with those of its 100% acrylic commercial version. When synthesized using the same approach, the biomass-containing PSA had a lower molecular weight, higher glass transition temperature, and lower melt viscosity. Introduction of MM had little impact on the tack force, shear time, and shear adhesion failure temperature, and the peel strength increased substantially."

According to the news editors, the research concluded: "It is expected that these hybrid materials can be optimized for a variety of self-adhesive applications."

For more information on this research see: Hot-Melt Pressure-Sensitive Adhesives Containing High Biomass Contents. Industrial & Engineering Chemistry Research, 2014;53(27):11000-11006. Industrial & Engineering Chemistry Research can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; Industrial & Engineering Chemistry Research -

Our news journalists report that additional information may be obtained by contacting C. Gu, University of Minnesota, Dept. of Bioprod & Biosyst Engn, Kaufert Lab, St Paul, MN 55108, United States. Additional authors for this research include M.R. Dubay and S.J. Severtson.

Keywords for this news article include: St. Paul, Minnesota, United States, Chemical Engineering, North and Central America

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

For more stories covering the world of technology, please see HispanicBusiness' Tech Channel

Source: Journal of Engineering

Story Tools Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters