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گواهی نمایه سازی مقاله Effect of Multi acrylate Crosslinkers on Rheological Properties of Poly Acrylate Microgels

عنوان مقاله: Effect of Multi acrylate Crosslinkers on Rheological Properties of Poly Acrylate Microgels
شناسه (COI) مقاله: ICHEC07_556
منتشر شده در هفتمین کنگره ملی مهندسی شیمی در سال ۱۳۹۰
مشخصات نویسندگان مقاله:

h Eshaghi - Department of Chemistry, Karaj Branch, Islamic Azad University, Karaj, Iran
h Bouhendi - Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965-115, Tehran, Iran
g BagheriMarandi - Department of Chemistry, Karaj Branch, Islamic Azad University, Karaj, Iran
m.j ZohurianMehr - Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965-115, Tehran, Iran

خلاصه مقاله:
Poly(acrylic acid) microgels were prepared by using multiacrylates crosslinkers by precipitation polymerization. In all systems a constant concentration of a multifunction crosslinker such as 1,6hexanediol diacrylate (HDDA), trimethylolpropane triacrylate (TMPTA) and di(trimethylolpropane) tetraacrylate (DTMPTA) was employed. Provided stability was shown by the strain sweeps tests performed using DTMPTA as multi fanctional crosslinker. Analysis of theG′ and G″ vs frequency curves gave information about the viscoelastic properties of samples. Thestrength of polymer network is increased by increasing the functionality of cross-linkers. The rotational viscosity results supported the pseudoplastic behavior of samples synthesized. Theelasticity theory was used to discuss the network structure of polymer and calculeted the number of crosslinker sites per unit volume (ν).

کلمات کلیدی:
Multi Functional Crosslinkers, Reheological Properties, Polyacrylate Microgels

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