A Synthetic Resorcinol-Formaldehyde Resin for the Absorption of Urea from Hemofiltrate1

2015 ◽  
pp. 181-185
Author(s):  
V. W. Armstrong ◽  
C. Fuchs ◽  
H. Kl�ver ◽  
D. Nussbaumer ◽  
H. Perl ◽  
...  
Keyword(s):  
Formaldehyde Resin ◽  
Resorcinol Formaldehyde

A Resorcinol-Formaldehyde Resin as an Embedding Material for Electron Microscopy of Membranes

1969 ◽  
Vol 27 ◽  
pp. 328-329 ◽  
Author(s):  
J. G. Robertson ◽  
D. F. Parsons
Keyword(s):  
Electron Microscopy ◽  
Osmium Tetroxide ◽  
Neutral Lipids ◽  
Lipid Extraction ◽  
Water Soluble ◽  
Formaldehyde Resin ◽  
Electron Microscope Autoradiography ◽  
Resorcinol Formaldehyde ◽  
Major Disadvantage ◽  
Cell Organization

The extraction of lipids from tissues during fixation and embedding for electron microscopy is widely recognized as a source of possible artifact, especially at the membrane level of cell organization. Lipid extraction is also a major disadvantage in electron microscope autoradiography of radioactive lipids, as in studies of the uptake of radioactive fatty acids by intestinal slices. Retention of lipids by fixation with osmium tetroxide is generally limited to glycolipids, phospholipids and highly unsaturated neutral lipids. Saturated neutral lipids and sterols tend to be easily extracted by organic dehydrating reagents prior to embedding. Retention of the more saturated lipids in embedded tissue might be achieved by developing new cross-linking reagents, by the use of highly water soluble embedding materials or by working at very low temperatures.

scholarly journals Effect of the surface properties of resorcinol–formaldehyde resin/carbon nanocomposites and their carbonization products on the solid-phase extraction of explosives

RSC Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 7033-7040 ◽  
Author(s):  
Viktor M. Bogatyrov ◽  
Mariia V. Galaburda ◽  
Waldemar Tomaszewski ◽  
Jadwiga Skubiszewska-Zięba
Keyword(s):  
Solid Phase Extraction ◽  
Surface Properties ◽  
Solid Phase ◽  
Formaldehyde Resin ◽  
Phase Extraction ◽  
Aqueous Samples ◽  
Carbon Nanocomposites ◽  
Resorcinol Formaldehyde ◽  
Carbon Nanofillers

This is the first application of composites containing carbon nanofillers as effective adsorbents for SPE of explosives from aqueous samples.

Preparation and enhanced supercapacitance performance of porous carbon spheres with a high degree of graphitization

RSC Advances ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 2088-2095 ◽  
Author(s):  
Binbin Chang ◽  
Baocheng Yang ◽  
Yanzhen Guo ◽  
Yiliang Wang ◽  
Xiaoping Dong
Keyword(s):  
Porous Carbon ◽  
Formaldehyde Resin ◽  
Carbon Spheres ◽  
Resorcinol Formaldehyde ◽  
Porous Carbon Spheres ◽  
High Degree ◽  
Degree Of Graphitization

This paper describes the preparation of graphitic porous carbon spheres (GPCS) from spherical resorcinol/formaldehyde resin by Fe-catalysis at 900 °C.

Cesium removal from AP-105 Hanford tank waste using spherical resorcinol formaldehyde resin

2019 ◽  
Vol 54 (12) ◽  
pp. 1932-1941 ◽  
Author(s):  
Sandra K. Fiskum ◽  
Heather A. Colburn ◽  
Amy M. Rovira ◽  
Jarrod R Allred ◽  
Margaret R. Smoot ◽  
...  
Keyword(s):  
Formaldehyde Resin ◽  
Resorcinol Formaldehyde ◽  
Cesium Removal ◽  
Tank Waste

scholarly journals Solar-to-hydrogen peroxide energy conversion on resorcinol–formaldehyde resin photocatalysts prepared by acid-catalysed polycondensation

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Yasuhiro Shiraishi ◽  
Takumi Hagi ◽  
Masako Matsumoto ◽  
Shunsuke Tanaka ◽  
Satoshi Ichikawa ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
High Temperature ◽  
Hydrothermal Method ◽  
Liquid Fuel ◽  
Artificial Photosynthesis ◽  
Chemical Conversion ◽  
Formaldehyde Resin ◽  
Resorcinol Formaldehyde ◽  
Donor Acceptor ◽  
Acidic Conditions

AbstractThe photocatalytic generation of hydrogen peroxide from water and dioxygen (H2O + 1/2O2 → H2O2, ΔG° = +117 kJ mol–1) under sunlight is a promising strategy for the artificial photosynthesis of a liquid fuel. We had previously found that resorcinol–formaldehyde (RF) resin powders prepared by the base-catalysed high-temperature hydrothermal method act as semiconductor photocatalysts for H2O2 generation. Herein, we report that RF resins prepared by the acid-catalysed high-temperature hydrothermal method (~523 K) using common acids at pH < 4 exhibit enhanced photocatalytic activity. The base- and acid-catalysed methods both produce methylene- and methine-bridged resins consisting of π-conjugated and π-stacked benzenoid–quinoid donor–acceptor resorcinol units. The acidic conditions result in the resins with a lower bandgap (1.7 eV) and higher conductivity because the lower-degree of crosslinking creates a strongly π-stacked architecture. The irradiation of the RF-acid resins with simulated sunlight in water with atmospheric-pressure O2 generates H2O2 at a solar-to-chemical conversion efficiency of 0.7%, which is the highest efficiency ever reported for powder catalysts used in artificial photosynthesis.

Size control and characterization of spherical carbon aerogel particles from resorcinol–formaldehyde resin

Carbon ◽  
2004 ◽  
Vol 42 (1) ◽  
pp. 169-175 ◽  
Author(s):  
Toshihide Horikawa ◽  
Jun’ichi Hayashi ◽  
Katsuhiko Muroyama
Keyword(s):  
Size Control ◽  
Carbon Aerogel ◽  
Formaldehyde Resin ◽  
Resorcinol Formaldehyde ◽  
Spherical Carbon

Pyrolyzed graphene oxide/resorcinol-formaldehyde resin composites as high-performance supercapacitor electrodes

2011 ◽  
Vol 21 (8) ◽  
pp. 2663 ◽  
Author(s):  
Kai Zhang ◽  
Bao Ting Ang ◽  
Li Li Zhang ◽  
Xiu Song Zhao ◽  
Jishan Wu
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Formaldehyde Resin ◽  
Resin Composites ◽  
Resorcinol Formaldehyde

Small- to large-scale comparisons of cesium ion exchange performance with spherical resorcinol formaldehyde resin

2019 ◽  
Vol 54 (12) ◽  
pp. 1922-1931 ◽  
Author(s):  
Sandra K. Fiskum ◽  
Reid A. Peterson ◽  
Heather A. Colburn ◽  
Margaret R. Smoot ◽  
Matthew R. Landon ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Large Scale ◽  
Formaldehyde Resin ◽  
Resorcinol Formaldehyde ◽  
Exchange Performance ◽  
Cesium Ion
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