Results 211 to 220 of about 69,069 (246)
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Canadian Journal of Chemistry, 1989
This study was designed to answer the question whether the chromatographic performance of porous polymers — serving here as a model system for pressure-sensitive separation media of relatively large mass transfer resistance — could be improved (a) by imposing on them a chromatographically favorable, extrinsic macrostructure and (b) by protecting that ...
Cai-Ying Wu, Walter A. Aue
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This study was designed to answer the question whether the chromatographic performance of porous polymers — serving here as a model system for pressure-sensitive separation media of relatively large mass transfer resistance — could be improved (a) by imposing on them a chromatographically favorable, extrinsic macrostructure and (b) by protecting that ...
Cai-Ying Wu, Walter A. Aue
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Porous Polymers by Emulsion Templating
Macromolecular Symposia, 2005AbstractHighly porous and permeable polymers are produced by polymerisation of the continuous phase of high internal phase emulsions (HIPEs). The morphology and properties of the resulting PolyHIPE materials can be varied, allowing the materials to be optimised for a variety of applications.
BARBETTA, ANDREA +8 more
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Luminescent Mechanochromic Porous Coordination Polymers
Chemistry – A European Journal, 2014AbstractThree 2D luminescent isomeric porous coordination polymers are synthesized and characterized. Their luminescence properties can be modified by grinding and they can act as mechanochromic materials and their properties are probably related to the weak interactions of cuprophilicity and π–π interactions.
Tian, Wen +3 more
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Soluble Hyperbranched Porous Organic Polymers
Macromolecular Rapid Communications, 2018AbstractSoluble porous organic polymers (SPOPs) are currently the subject of extensive investigation due to the enhanced processability compared to insoluble counterparts. Here, a new concept for the construction of SPOPs is presented, which combines the unique topological structure of hyperbranched polymers with rigid building blocks.
Yuwan Yang +7 more
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Prevascularization of porous biodegradable polymers
Biotechnology and Bioengineering, 1993AbstractHighly porous biocompatible and biodegradable polymers in the form of cylindrical disks of 13.5 mm diameter were implanted in the mesentery of male syngeneic Fischer rats for a period of 35 days to study the dynamics of tissue ingrowth and the extent of tissue vascularity, and to explore their potential use as substrates for cell ...
A G, Mikos +5 more
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Porous Polymer Monolith Assisted Electrospray
Analytical Chemistry, 2004Coupling low-flow analytical separation instrumentation such as capillary electrophoresis, capillary electrochromatography, nano-HPLC, and microfluidic-based devices with electrospray ionization mass spectrometry has yielded powerful analytical tools. However, conventional coupling methodologies such as nanospray suffer from limitations including poor ...
Terry, Koerner +3 more
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Polymer, 2020
Abstract Porous polymers offer considerable scope and opportunities for energy and environmental applications, attributable to their unique pore environments together with structural and chemical diversities. However, the application coverage is restricted by the lack of solution-processability of most porous polymers.
Saikat Das, Teng Ben, Shilun Qiu
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Abstract Porous polymers offer considerable scope and opportunities for energy and environmental applications, attributable to their unique pore environments together with structural and chemical diversities. However, the application coverage is restricted by the lack of solution-processability of most porous polymers.
Saikat Das, Teng Ben, Shilun Qiu
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Porous Polymers for Biological Fixation
Clinical Orthopaedics and Related Research, 1988Porous polymers are recommended as coatings for femoral stems on the basis of their low modulus, which allows uniform distribution of stress to surrounding bone and the fabrication of more flexible stems by reducing the metallic cross section. Application of the porous polymer coating to the metallic substrate reduces metal ion release; the polymer ...
M, Spector, I, Heyligers, J R, Roberson
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Porous polymer nanoparticle layers
Desalination, 2009Abstract Multilayers of colloidal polymer particles provide micro- or mesopores and can be used as a separation media similar to micro- and ultrafiltration membranes. Materials derived from polymer particles are of interest for making novel functional membranes, because they combine mesoporosity, high specific surface area and the possibility to ...
H. Wutzel, W.M. Samhaber
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Fluorescent porous organic polymers
Polymer Chemistry, 2019Porous organic polymers (POPs), which are built from pure organic building blocks through strong covalent bonds, are intriguing platforms with multiple functionalities.
Dongyang Chen +4 more
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