Cross-linkable Polymer Matrix for Enhanced Thermal Stability of Succinonitrile-based Polymer Electrolyte in Lithium Rechargeable Batteries

2011 ◽  
Vol 2 (4) ◽  
pp. 198-203 ◽  
Author(s):  
Myung-Hyun Ryou ◽  
Dong-Jin Lee ◽  
Je-Nam Lee ◽  
Hong-Kyeong Lee ◽  
Myung-Won Seo ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Polymer Electrolyte ◽  
Polymer Matrix ◽  
Rechargeable Batteries ◽  
Lithium Rechargeable Batteries ◽  
Thermal Stability Of

Effect of the hydrophilicity of the polymer matrix on immobilized α-chymotrypsin

1984 ◽  
Vol 49 (6) ◽  
pp. 1552-1556
Author(s):  
Minoru Kumakura ◽  
Isso Kaetsu
Keyword(s):  
Thermal Stability ◽  
Enzyme Activity ◽  
Pore Size ◽  
Polymer Matrix ◽  
Low Temperatures ◽  
Radiation Polymerization ◽  
Thermal Stability Of

α-Chymotrypsin was immobilized by radiation polymerization at low temperatures and the effect of the hydrophilicity of the polymer matrix on the enzyme activity and thermal stability was studied. The activity and thermal stability of immobilized chymotrypsin increased with the increasing hydrophilicity of the polymer matrix or monomer. The thermal stability was affected by the form and pore size of the polymer matrix; chymotrypsin immobilized on a soft-gel polymer matrix exhibited an enhanced thermal stability.

Thermal and viscoelastic behaviors of nanotube-reinforced polyethylene composite

2011 ◽  
Vol 1312 ◽  
Author(s):  
Ananta Raj Adhikari ◽  
Mircea Chipara ◽  
Karen Lozano
Keyword(s):  
Mechanical Property ◽  
Thermal Stability ◽  
Mechanical Behavior ◽  
Storage Modulus ◽  
Polymer Matrix ◽  
Loss Modulus ◽  
Polyethylene Composite ◽  
Viscoelastic Behaviors ◽  
Thermal Stability Of

ABSTRACTThe effect of processing (shear) time on the mechanical behavior and thermal stability of multiwalled nanotube reinforced polyethylene was investigated. It was observed that the mechanical property (storage modulus, loss modulus) of the composites is process dependant whereas the thermal stability does not. The increase in mechanical behavior is attributed to a stronger interface between the nanotube and the polymer matrix.

scholarly journals Antimicrobial Properties of Chitosan-Alumina/f-MWCNT Nanocomposites

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Monaheng Masheane ◽  
Lebea Nthunya ◽  
Soraya Malinga ◽  
Edward Nxumalo ◽  
Tobias Barnard ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Polymer Matrix ◽  
Antimicrobial Properties ◽  
Inversion Method ◽  
Bacterial Strains ◽  
Multiwalled Carbon ◽  
Simple Phase ◽  
Phase Inversion Method ◽  
Thermal Stability Of ◽  
Sem Analyses

Antimicrobial chitosan-alumina/functionalized-multiwalled carbon nanotube (f-MWCNT) nanocomposites were prepared by a simple phase inversion method. Scanning electron microscopy (SEM) analyses showed the change in the internal morphology of the composites and energy dispersive spectroscopy (EDS) confirmed the presence of alumina and f-MWCNTs in the chitosan polymer matrix. Fourier transform infrared (FTIR) spectroscopy showed the appearance of new functional groups from both alumina and f-MWCNTs, and thermogravimetric analysis (TGA) revealed that the addition of alumina and f-MWCNTs improved the thermal stability of the chitosan polymer. The presence of alumina and f-MWCNTs in the polymer matrix was found to improve the thermal stability and reduced the solubility of chitosan polymer. The prepared chitosan-alumina/f-MWCNT nanocomposites showed inhibition of twelve strains of bacterial strains that were tested. Thus, the nanocomposites show a potential for use as a biocide in water treatment for the removal of bacteria at different environmental conditions.

scholarly journals Composite Ferroelectric Coatings Based on a Heat-Resistant Polybenzoxazole Polymer Matrix

Coatings ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 286
Author(s):  
Nikolay Mukhin ◽  
Irina Sokolova ◽  
Dmitry Chigirev ◽  
Lyudmila Rudaja ◽  
Galina Lebedeva ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Dielectric Constant ◽  
Polymer Matrix ◽  
Composite Coatings ◽  
Polymer Coatings ◽  
Molar Ratio ◽  
Dielectric Parameters ◽  
Temperature Range ◽  
Heat Resistant ◽  
Thermal Stability Of

The polycondensation of 5,5-methylene bis(2-aminophenol) and the mixture of diamines 5,5-methylene bis(2-aminophenol) and 4,4-(hexafluoroisopropylidene)dianiline (molar ratio 0.8:0.2) with isophthaloyl dichloride was used to synthesize a new heat resistant binder of the composites for microelectronics: poly(o-hydroxyamide) (POA) and poly(amido-o-hydroxy amide) (POA-F). The thermal stability of synthesized polymer coatings, as well as based on them photosensitive compositions with a naphthoquinondiazide photosensitive component were studied in the temperature range from 100 to 500 °C. Ferroelectric composites with nanodispersed lead titanate zirconate powder filler were formed based on these polymer matrices. By manipulating the conditions of the polymer formation, we obtained matrices with different stiffnesses, which reflected on the properties of the composite. The electrophysical parameters of the synthesized polymer and ferroelectric composite coatings were measured in the frequency range from 0.1 Hz to 1.5 GHz and the temperature range from 0 to 300 °C. The frequency and temperature stability of the dielectric constant of ferroelectric composite coatings up to 10 MHz and 300 °C, respectively, are noted. The influence of the composition and structure of the polymer matrix and the grain/matrix interfaces on the thermal stability of the dielectric parameters of composite films is estimated. The shift of the phase transition region toward higher temperatures in the composite structure, as well as the sufficient rigidity of the poly(benzoxazole) matrix, provide high temperature and frequency stability of the dielectric constant of the studied composites.

scholarly journals Synthesis, Characterization and Their Antimicrobial Activities of Boron Oxide/Poly(Acrylic Acid) Nanocomposites: Thermal and Antimicrobial Properties

2018 ◽  
Vol 18 (1) ◽  
pp. 28-36 ◽  
Author(s):  
P. T. Beyli ◽  
M. Doğan ◽  
Z. Gündüz ◽  
M. Alkan ◽  
Y. Turhan
Keyword(s):  
Thermal Stability ◽  
Acrylic Acid ◽  
Polymer Matrix ◽  
Boron Oxide ◽  
Antimicrobial Properties ◽  
Antimicrobial Activities ◽  
Dilution Method ◽  
Solution Intercalation ◽  
Thermal Stability Of ◽  
Poly Acrylic Acid

AbstractBoron oxide (B2O3)/Poly(acrylic acid) (PAA) nanocomposites were synthesized by solution intercalation method, and characterized by Fourier transform infrared spectroscopy (FTIR-ATR), transmission electron microscopy (TEM), X-ray diffraction and thermogravimetric analysis (DTA/TG). The effect of boron oxide amount on the thermal stability of nanocomposites was investigated. Moreover, the antimicrobial activities of them were also determined by the serial dilution method against E. coli and S. aureus. XRD analysis showed that boron oxide was homogenously dispersed in polymer matrix; FTIR-ATR that there was interaction between PAA and boron oxide; and TEM that boron oxide particles had spherical structure, and dispersed in nano size in polymer matrix; DTA/TG that the thermal stability of polymers increased with the adding of boron oxide into polymer matrix, and changed the decomposition mechanism of PAA. B2O3/PAA nanocomposites exhibited higher decomposition temperature. The decomposition mechanisms of PAA and its nanocomposites occurred through three decomposition steps; dehydration, decarboxylation and chain scission. B2O3/PAA nanocomposites showed greater antimicrobial activity with increasing B2O3 amount.

Poly N-(oxyalkyl)pyrrole electrodes and (PEOSEO)20LiClO4 polymer electrolyte in lithium rechargeable batteries

1992 ◽  
Vol 37 (9) ◽  
pp. 1631-1634 ◽  
Author(s):  
C. Arbizzani ◽  
M. Mastragostino ◽  
L. Meneghello ◽  
T. Hamaide ◽  
A. Guyot
Keyword(s):  
Polymer Electrolyte ◽  
Rechargeable Batteries ◽  
Lithium Rechargeable Batteries

scholarly journals PLR (Plastic Lithium Rechargeable) Batteries Using Nanoscale Materials: A Convenient Electrical Energy Power for the Future?

1999 ◽  
Vol 22 (2) ◽  
pp. 87-105 ◽  
Author(s):  
G. Campet ◽  
N. Treuil ◽  
A. Poquet ◽  
S. Y. Hwang ◽  
C. Labrugere ◽  
...  
Keyword(s):  
Low Temperature ◽  
Polymer Matrix ◽  
Electrode Materials ◽  
Low Cost ◽  
Electrical Energy ◽  
Rechargeable Batteries ◽  
Lithium Rechargeable Batteries ◽  
The Future ◽  
Electrolyte Membranes ◽  
Poly Acrylonitrile

This communication describes the synthesis of: (i) non toxic and low cost nanocrystalline electrode materials which can be advantageously prepared at low temperature; (ii) highly conductive electrolyte membranes formed by the nano-encapsulation within a poly (acrylonitrile)-based polymer matrix of a solution of LiPF6in organic solvants. The performances of rechargeable PLR (Plastic Lithium Rechargeable) batteries using the above mentioned components are presented.

Thermal Stability of the Polymer Electrolyte  (  PEO  ) 8LiCF3 SO 3

1994 ◽  
Vol 141 (11) ◽  
pp. 2978-2981 ◽  
Author(s):  
Takahisa Shodai ◽  
Boone B. Owens ◽  
Hideaki Ohtsuka ◽  
Jun‐ichi Yamaki
Keyword(s):  
Thermal Stability ◽  
Polymer Electrolyte ◽  
Thermal Stability Of
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