USANS study of porosity and water content in sponge-like hydrogels

被引：12
|
作者：
Iannuzzi, Morgan A. [2 ]
Reber, Roderick, III [2 ]
Lentz, Daniel M. [2 ]
Zhao, Jun [1 ]
Ma, Lan [1 ]
Hedden, Ronald C. [1 ]
机构：
[1] Texas Tech Univ, Dept Chem Engn, Lubbock, TX 79409 USA
[2] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA
来源：
POLYMER | 2010年 / 51卷 / 09期
基金：
美国国家科学基金会;
关键词：
Hydrogels; Porous; USANS; ANGLE NEUTRON-SCATTERING; POLY(2-HYDROXYETHYL METHACRYLATE); PORE STRUCTURE; GELS; POROSIMETRY; BEHAVIORS; DESIGN; FILMS;
D O I：
10.1016/j.polymer.2010.02.034
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Ultra small-angle neutron scattering (USANS) methods and equilibrium swelling measurements are combined to characterize correlation length, pore volume fraction, and gel-phase water content in sponge-like hydrogels. USANS invariant analysis is applied to poly(hydroxyethylmethacrylate) gels prepared with 40-80 vol. % of an extractable porogen. These gels are strongly opaque in the swollen state, but become transparent upon drying due to shrinkage or disappearance of the pores. The correlation length associated with porosity is measured by fitting USANS data to an appropriate scattering model. By combining swelling measurements with USANS invariant analysis, it is possible to determine the equilibrium volume fraction of pores and the concentration of water in the gel phase without performing contrast variation measurements. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2049 / 2056
页数：8
相关论文
共 50 条
  • [31] Development and characterization of sponge-like acyclovir ocular minitablets
    Refai, Hanan
    Tag, Randa
    DRUG DELIVERY, 2011, 18 (01) : 38 - 45
  • [32] Sponge-like reversible transformation of a bimetallic cyanometallate polymer
    Sereda, Olha
    Neels, Antonia
    Stoeckli, Fritz
    Stoeckli-Evans, Helen
    Filinchuk, Yaroslav
    CRYSTAL GROWTH & DESIGN, 2008, 8 (07) : 2307 - 2311
  • [33] Sponge-Like Catalyst Makes Bioplastic Cheaper and Greener
    不详
    CHEMICAL ENGINEERING PROGRESS, 2015, 111 (08) : 6 - 6
  • [34] Synthesis of Sponge-like Material for the Extraction of Fluoroquinolones in Milk
    Yang, Xun
    Han, Ye-Hong
    Wang, Li-Hui
    PROCEEDINGS OF 2014 INTERNATIONAL CONFERENCE ON MATERIAL SCIENCE AND ENGINEERING, 2014, 1035 : 231 - 234
  • [35] Sponge-Like Nickel Carbonate of High Porosity and Carbonate Vacancy for High-Performance CO2 Photoreduction
    Yang, Bixia
    Zheng, Yanting
    Wen, Yonglin
    Zhang, Tingshi
    Lin, Mingxiong
    Yan, Jiawei
    Zhuang, Zanyong
    Yu, Yan
    ADVANCED SUSTAINABLE SYSTEMS, 2022, 6 (07)
  • [36] Gelatin-assisted templating route to synthesize sponge-like mesoporous silica with bimodal porosity and lysozyme adsorption behavior
    Yang, Xu
    Liao, Shi-Jun
    Liang, Zhen-Xing
    Li, Yue-Xia
    Du, Li
    MICROPOROUS AND MESOPOROUS MATERIALS, 2011, 143 (2-3) : 263 - 269
  • [37] Characterization of porosity in sulfide ore minerals: A USANS/SANS study
    Xia, Fang
    Zhao, Jing
    Etschmann, Barbara E.
    Brugger, Joel
    Garvey, Christopher J.
    Rehm, Christine
    Lemmel, Hartmut
    Ilvasky, Jan
    Han, Young-Soo
    Pring, Allan
    AMERICAN MINERALOGIST, 2014, 99 (11-12) : 2398 - 2404
  • [38] Temperature-Triggered Collection and Release of Water from Fogs by a Sponge-Like Cotton Fabric
    Yang, Hengrui
    Zhu, Haijin
    Hendrix, Marco M. R. M.
    Lousberg, Niek J. H. G. M.
    de With, Gijsbertus
    Esteves, A. Catarina C.
    Xin, John H.
    ADVANCED MATERIALS, 2013, 25 (08) : 1150 - 1154
  • [39] Pure sponge-like membranes bearing both high water permeability and high retention capacity
    Wang, Zhenghui
    Ma, Jun
    Liu, Qianliang
    DESALINATION, 2011, 278 (1-3) : 141 - 149
  • [40] Potential evaluation and perspectives on using sponge-like superabsorbent cryogels for onsite water treatment in emergencies
    Loo, Siew-Leng
    Lim, Teik-Thye
    Krantz, William B.
    Fane, Anthony G.
    Hu, Xiao
    DESALINATION AND WATER TREATMENT, 2015, 53 (06) : 1506 - 1515
12345