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New Applied Polymer Science Data Have Been Reported by Researchers at State University of Campinas (Rheological Properties of Citrus Pectin...

July 1, 2014



New Applied Polymer Science Data Have Been Reported by Researchers at State University of Campinas (Rheological Properties of Citrus Pectin Dispersions and Its Blends with Polyquaternium-7 and Colloidal Particles)

By a News Reporter-Staff News Editor at Journal of Technology -- Data detailed on Applied Polymer Science have been presented. According to news reporting originating in Sao Paulo, Brazil, by VerticalNews journalists, research stated, "This article reports on the rheological behavior of a 5% (w/w) citrus pectin (CP) dispersion, its blends with polyquaternium-7 (PQ) and also with 200 nm nanoparticles (NP) and 1.8 mu m microparticles (MP) of CP. The viscous (G) and elastic (G) moduli of the CP dispersion were similar, whereas G was higher than G for PQ."

The news reporters obtained a quote from the research from the State University of Campinas, "The 1:20 (w/w) blend of CP and PQ enhanced the viscoelastic profile of CP and also decreased its cross-over frequency. NP and MP were equally effective in enhancing the viscoelastic properties of CP. The best viscoelastic behavior was obtained with 1:20:0.4 (w/w) CP:PQ:(NP or MP) composition. The association of CP with PQ and/or MP or NP tended to change the behavior of CP and PQ dispersions from pseudoplastic to Newtonian. Cox-Merz superposition was observed for CP:PQ and CP:(MP or NP)."

According to the news reporters, the research concluded: "These findings contribute for modulation of the rheological properties of CP dispersions for specific applications."

For more information on this research see: Rheological Properties of Citrus Pectin Dispersions and Its Blends with Polyquaternium-7 and Colloidal Particles. Journal of Applied Polymer Science, 2014;131(15):322-328. Journal of Applied Polymer Science can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell - www.wiley.com/; Journal of Applied Polymer Science - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1097-4628)

Our news correspondents report that additional information may be obtained by contacting R.M. Martinez, Campinas State University, Dept. of Engn Mat & Bioproc, Sch Chem Engn, BR-13083970 Sao Paulo, Brazil. Additional authors for this research include A.A.M. Shimojo and M.H.A. Santana.

Keywords for this news article include: Brazil, Sao Paulo, South America, Applied Polymer Science

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Source: Journal of Technology


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