دورية أكاديمية
أعرض في EDS

The viscosity of dilute poly(N-isopropylacrylamide) dispersions.

التفاصيل البيبلوغرافية
العنوان: The viscosity of dilute poly(N-isopropylacrylamide) dispersions.
المؤلفون: Howe AJ; BP Institute for Multiphase Flow, University of Cambridge, Madingley Rise, Cambridge CB3 0EZ, United Kingdom., Howe AM, Routh AF
المصدر: Journal of colloid and interface science [J Colloid Interface Sci] 2011 May 15; Vol. 357 (2), pp. 300-7. Date of Electronic Publication: 2011 Feb 17.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Academic Press Country of Publication: United States NLM ID: 0043125 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-7103 (Electronic) Linking ISSN: 00219797 NLM ISO Abbreviation: J Colloid Interface Sci Subsets: PubMed not MEDLINE
أسماء مطبوعة: Publication: Orlando, FL : Academic Press
Original Publication: New York.
مستخلص: The viscosity of dilute aqueous dispersions of poly(N-isopropylacrylamide) microgel particles is measured by capillary viscometry. The viscosity increases with particle mass fraction and on reducing temperature, particularly below the volume phase transition temperature (VPTT) of 32 °C. Converting the particle loading to volume fraction via the change in hydrodynamic size, the slope of the viscosity-volume fraction graph exhibits an increasing value beyond that for the equivalent effective hard-sphere size as the particles swell. This increase is due to the porosity of the particles. Two microgel samples of different collapsed size (124 and 59 nm at 50 °C) are investigated and the deviation from hard-sphere behavior is greater for the smaller particles.
(Copyright © 2011 Elsevier Inc. All rights reserved.)
تواريخ الأحداث: Date Created: 20110315 Date Completed: 20110726 Latest Revision: 20110328
رمز التحديث: 20240628
DOI: 10.1016/j.jcis.2011.02.037
PMID: 21396658
قاعدة البيانات: MEDLINE
الوصف
تدمد:1095-7103
DOI:10.1016/j.jcis.2011.02.037