Synthesis, properties and thermal stability of water-soluble poly(potassium 1-hydroxyacrylate-co -styrene) copolymer

2017 ◽  
Vol 67 (1) ◽  
pp. 111-120 ◽  
Author(s):  
Bijender Kumar ◽  
Yuvraj Singh Negi
Keyword(s):  
Thermal Stability ◽  
Water Soluble ◽  
Styrene Copolymer ◽  
Synthesis Properties ◽  
Stability Of Water ◽  
Thermal Stability Of ◽  
Soluble Poly

Thermal stability of water-soluble polymers in solution

2018 ◽  
Vol 265 ◽  
pp. 818-823 ◽  
Author(s):  
Stéphanie Cavalcante de Morais ◽  
Oldemar Ribeiro Cardoso ◽  
Rosangela de Carvalho Balaban
Keyword(s):  
Thermal Stability ◽  
Water Soluble ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Stability Of Water ◽  
Thermal Stability Of

scholarly journals Thermal Stability of Water Ice in Ceres' Craters: The Case of Juling Crater

2018 ◽  
Vol 123 (9) ◽  
pp. 2445-2463 ◽  
Author(s):  
M. Formisano ◽  
C. Federico ◽  
M. C. De Sanctis ◽  
A. Frigeri ◽  
G. Magni ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Water Ice ◽  
Stability Of Water ◽  
Thermal Stability Of

scholarly journals Influence of Carbon Nanotubes on Thermal Stability of Water-Dispersible Nanofibrillar Polyaniline/Nanotube Composite

Materials ◽  
2012 ◽  
Vol 5 (12) ◽  
pp. 327-335 ◽  
Author(s):  
Ana López Cabezas ◽  
Xianjie Liu ◽  
Qiang Chen ◽  
Shi-Li Zhang ◽  
Li-Rong Zheng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Water Dispersible ◽  
Stability Of Water ◽  
Thermal Stability Of

Fundamental study on thermal stability of water hydrostatic spindle

2016 ◽  
Vol 2016 (0) ◽  
pp. S1320103
Author(s):  
Tsubasa YAGUCHI ◽  
Satoshi SHIBATA ◽  
Akio HAYASHI ◽  
Yohichi NAKAO
Keyword(s):  
Thermal Stability ◽  
Fundamental Study ◽  
Stability Of Water ◽  
Thermal Stability Of

Thermo-physical behaviors of carbon nanofiber reinforced polylactic acid

2013 ◽  
Vol 1505 ◽  
Author(s):  
Ananta Raj Adhikari ◽  
Kamal Sarkar ◽  
Karen Lozano
Keyword(s):  
Thermal Stability ◽  
Polylactic Acid ◽  
Carbon Nanofiber ◽  
Water Soluble ◽  
Steady Increase ◽  
Future Technology ◽  
Large Numbers ◽  
Stage Crystallization ◽  
Thermo Physical Properties ◽  
Thermal Stability Of

ABSTRACT:Studies have demonstrated that the reinforcement of polymeric matrices using nanofiller can results with better thermo-physical properties of polymer. Carbon nanofiber (CNF) is a unique quasi-one dimensional nanostructure with large numbers of edges and defects compared to carbon nanotube (CNT). Further the availability in large quantity along with lower cost makes them an important nanomaterial for future technology. We have previously used CNF in different thermoplastic polymers. In this study CNFs were used with water soluble thermoplastic aliphatic polyster polylactic acid (PLA) and studied their thermal and mechanical properties. Thermal analysis using Thermogravimetric Analysis showed enhanced thermal stability of the polymer at higher nanotube loading (>1 wt%) and decrease of thermal stability at higher loading (>10 wt%). Crystallization thermogram of PLA was modified heavily with the addition of nanofibers changing clearly from one stage to two stage crystallization. In addition, CNF facilitates the crystallization of PLA resulting in an increase of its crystallization. The mechanical testing showed the steady increase of modulus of the composites with the nanofiber content within the range of study which can be regarded as due to the change in interface property of the composites.

scholarly journals Thermal Stability of Gel Foams Stabilized by Xanthan Gum, Silica Nanoparticles and Surfactants

Gels ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 179
Author(s):  
Youjie Sheng ◽  
Canbin Yan ◽  
Yang Li ◽  
Yunchuan Peng ◽  
Li Ma ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Surface Activity ◽  
Xanthan Gum ◽  
Foam Stability ◽  
Water Soluble ◽  
Water Soluble Polymer ◽  
Foaming Ability ◽  
Subtle Effect ◽  
Thermal Stability Of ◽  
Foam Drainage

The foams stabilized by nanoparticles (NPs), water-soluble polymers, and surfactants have potential application prospects in the development of new, environmentally friendly firefighting foams. In the present study, a gel foam containing a water-soluble polymer (xanthan gum, XG), hydrophilic silica NPs, hydrocarbon surfactant (SDS), and fluorocarbon surfactant (FS-50) were prepared. The surface activity, conductivity, viscosity, and foaming ability of foam dispersions were characterized. The gel foam stability under a radiation heat source and temperature distribution in the vertical foam layer were evaluated systematically. The results show that the addition of NPs and XG has a significant effect on the foaming ability, viscosity and foam thermal stability, but has a very subtle effect on the conductivity and surface activity. The foaming ability of the FS-50/SDS solution was enhanced by the addition of NPs, but decreased with increasing the XG concentration. The thermal stability of the foams stabilized by SDS/FS-50/NPs/XG increased with the addition of NPs and increasing XG concentration. Foam drainage and coarsening were significantly decelerated by the addition of NPs and XG. The slower foam drainage and coarsening are the main reason for the intensified foam thermal stability. The results obtained from this study can provide guidance for developing new firefighting foams.

Synthesis, Properties and Dimerization Study of Isocyanic Acid

2002 ◽  
Vol 57 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Gerd Fischer ◽  
Janna Geith ◽  
Thomas M. Klapötke ◽  
Burkhard Krumm
Keyword(s):  
Mass Spectrometry ◽  
Thermal Stability ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Oxalic Acid ◽  
Gas Phase ◽  
Isocyanic Acid ◽  
Synthesis Properties ◽  
Phase Liquid ◽  
Thermal Stability Of

Isocyanic acid was prepared in pure form by reaction of KOCN or NaOCN with stearic or oxalic acid in good yield. Identification, characterization and investigation of the thermal stability of HNCO and evidence for a possible existence of “dicyanic acid” have been studied in gas phase, liquid and solid state by vibrational and NMR spectroscopy and mass spectrometry.

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