One Step to Prepare Ag/PPy Composites with Different Soft Templates

2013 ◽  
Vol 742 ◽  
pp. 158-161
Author(s):  
Mei Li ◽  
Hong Wei Teng ◽  
Wen Guang Li ◽  
Jun Liu ◽  
Ying Kai Liu
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Sulfonic Acid ◽  
Resistivity Measurement ◽  
Sodium Dodecyl ◽  
Soft Template ◽  
Naphthalene Sulfonic Acid ◽  
One Step ◽  
Polymerization Method ◽  
Soft Templates

Ag/PPy composites were prepared in β-naphthalene sulfonic acid (β-NSA) or sodium dodecyl sulfate (SDS) aqueous solutions with AgNO3 as oxidant. β-NSA or SDS acted as dopant and soft template in the process of preparing polypyrrole (PPy) by in situ oxidizing polymerization method. SEM, TEM, FTIR, XRD and Four-Point Probes Resistivity Measurement System were tested respectively and results indicated that the obtained Ag/PPy composites displayed different morphology,structure and conducting characteristic.

Electrophoretic characterization of endo-(1,4)-β-glucanases secreted during assimilative growth and antheridiol-induced branching inAchlya ambisexualis

1996 ◽  
Vol 42 (6) ◽  
pp. 557-561 ◽  
Author(s):  
Terry W. Hill
Keyword(s):  
Enzyme Activity ◽  
Sodium Dodecyl Sulfate ◽  
Cell Walls ◽  
Sodium Dodecyl ◽  
Achlya Ambisexualis ◽  
Dodecyl Sulfate ◽  
Exclusion Chromatography ◽  
Molecular Masses

Secreted endo-(1,4)-β-glucanases ("cellulases") of Achlya ambisexualis were analyzed by a technique that permits visualization of enzyme activity in situ after electrophoresis in gels containing sodium dodecyl sulfate. Catalytic polypeptides with molecular masses of about 97, 74, 36, 29, and 25 kDa were observed in media from young cultures, though progressively fewer bands were observed as cultures aged. Based on size estimations of native enzymes with gel exclusion chromatography, the 97- and 36-kDa polypeptides were concluded to be subunits of a 245-kDa holoenzyme and the 25-kDa polypeptides were concluded to be subunits of a second holoenzyme of about 92 kDa. The data were insufficient to allow similar assignments for the more ephemeral 74- and 29-kDa polypeptides. The endoglucanases secreted during branch induction by antheridiol or 0.2% peptone comigrated in electrophoretic gels with enzymes secreted during normal assimilative growth. No endoglucanases specific to induced branching were observed.Key words: oomycetes, cell walls, endoglucanases, cellulases, antheridiol.

Affinity purification of polyclonal antibodies from antigen immobilized in situ in sodium dodecyl sulfate-polyacrylamide gels

1990 ◽  
Vol 187 (2) ◽  
pp. 246-250 ◽  
Author(s):  
Patricia J. Madara ◽  
Lisa R. Banghart ◽  
Lucinda J.W. Jack ◽  
Luz M. Neira ◽  
Ian H. Mather
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Polyclonal Antibodies ◽  
Affinity Purification ◽  
Sodium Dodecyl ◽  
Polyacrylamide Gels ◽  
Dodecyl Sulfate

Room-temperature efficient NO2 gas sensors fabricated by porous 3D flower-like ZnAl-layered double hydroxides

2020 ◽  
Vol 44 (42) ◽  
pp. 18469-18480
Author(s):  
Ye Hong ◽  
Di Wang ◽  
Chong Lin ◽  
Shuiting Luo ◽  
Qingjiang Pan ◽  
...  
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Hydrothermal Method ◽  
Gas Sensors ◽  
Layered Double Hydroxides ◽  
Room Temperature ◽  
Sodium Dodecyl ◽  
Three Dimensional ◽  
One Step ◽  
No2 Gas Sensors ◽  
Double Hydroxides

Three-dimensional (3D) flower-like zinc and aluminum-sodium dodecyl sulfate-layered double hydroxides (ZnAl-SDS-LDHs) intercalated by anions were prepared using a simple one-step hydrothermal method.

Preparation of Epoxy Resin/Montmorillonite Composites by Monomer Insert In Situ Polymerization

2010 ◽  
Vol 178 ◽  
pp. 236-241
Author(s):  
Jing Xie ◽  
Shang Yue Shen ◽  
Yu Xia Luo ◽  
Meng Meng Zhang ◽  
Ying Chen
Keyword(s):  
Tensile Strength ◽  
Glass Transition ◽  
Transition Temperature ◽  
Epoxy Resin ◽  
In Situ Polymerization ◽  
Raw Materials ◽  
One Step ◽  
Polymerization Method ◽  
Intercalative Polymerization

Epoxy resin/ montmorillonite (EP/MMT) composite was prepared via monomer insert in-situ polymerization. It was shown that the EP/MMT composites could be successfully synthesized from the raw materials only by one step, making it simpler than traditional in-situ intercalative polymerization method. The d001 spacing of montmorillonite was tested by XRD and increased to 4.30nm. The results showed that tensile strength and impact strength were improved by 98.11 and 93.69%, respectively. The glass transition temperature was increased by 17.3 °C.

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