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
  • [21] Sponge-like nanoporous single crystals of gold
    Maria Koifman Khristosov
    Leonid Bloch
    Manfred Burghammer
    Yaron Kauffmann
    Alex Katsman
    Boaz Pokroy
    Nature Communications, 6
  • [22] Sponge-like nanostructured silicon for integrated emitters
    Hubarevich, A.
    Jaguiro, P.
    Mukha, Y.
    Smirnov, A.
    Solovjov, Ya.
    SEMICONDUCTOR PHYSICS QUANTUM ELECTRONICS & OPTOELECTRONICS, 2010, 13 (03) : 294 - 297
  • [23] Phase-Separated Polyzwitterionic Hydrogels with Tunable Sponge-Like Structures for Stable Solar Steam Generation
    Peng, Bolun
    Lyu, Quanqian
    Li, Miaomiao
    Du, Shuo
    Zhu, Jintao
    Zhang, Lianbin
    ADVANCED FUNCTIONAL MATERIALS, 2023, 33 (18)
  • [24] Dynamic Distributed Storage of Stormwater in Sponge-Like Porous Bodies: Modelling Water Uptake
    Lundstrom, T. Staffan
    Akerstedt, Hans O.
    Larsson, I. A. Sofia
    Marsalek, Jiri
    Viklander, Maria
    WATER, 2020, 12 (08)
  • [25] Sponge-like Cryogels from Liquid-Liquid Phase Separation: Structure, Porosity, and Diffusional Gel Properties
    Mastrangelo, Rosangela
    Resta, Claudio
    Carretti, Emiliano
    Fratini, Emiliano
    Baglioni, Piero
    ACS APPLIED MATERIALS & INTERFACES, 2023, 15 (39) : 46428 - 46439
  • [26] SUPERSOFT SPONGE-LIKE CRYOGEL AS AN IMPLANT TO TREAT GLIOBLASTOMA
    Wang, Yu
    Le Joncour, Vadim
    Laakkonen, Pirjo
    Newland, Ben
    NEURO-ONCOLOGY, 2024, 26
  • [27] Sponge-Like: A New Protocol for Preparing Bacterial Ghosts
    Amara, Amro A.
    Salem-Bekhit, Mounir M.
    Alanazi, Fars K.
    SCIENTIFIC WORLD JOURNAL, 2013,
  • [28] Morphosynthesis of organoclay microspheres with sponge-like or hollow interiors
    Muthusamy, E
    Walsh, D
    Mann, S
    ADVANCED MATERIALS, 2002, 14 (13-14) : 969 - +
  • [29] Field Emission from Porous Sponge-Like Graphene
    Guo, Yajie
    Di, Yunsong
    Ji, Jitao
    Zhang, Xiaobing
    Lei, Wei
    Guo, Xinli
    2018 31ST INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC), 2018,
  • [30] Synthesis and electrochemical characterization of sponge-like nickel nanoparticles
    Ramirez-Meneses, E.
    Dominguez-Crespo, M. A.
    Dorantes-Rosales, H.
    Torres-Huerta, A. M.
    Montiel-Palma, V.
    Hernandez-Tapia, G.
    NSTI NANOTECH 2008, VOL 1, TECHNICAL PROCEEDINGS: MATERIALS, FABRICATION, PARTICLES, AND CHARACTERIZATION, 2008, : 981 - +
12345