Ultraviolet Sensor Performance of Nanostructured LaCoO3 Prepared By Solution-Polymerization Method

2018 ◽  
Keyword(s):  
Solution Polymerization ◽  
Sensor Performance ◽  
Polymerization Method ◽  
Ultraviolet Sensor

Ultraviolet Sensor Performance of Nanostructured LaCoO3Prepared by the Solution-Polymerization Method

2018 ◽  
Vol 85 (7) ◽  
pp. 41-48
Author(s):  
Carlos R Michel ◽  
Miguel Angel Lopez-Alvarez ◽  
Alma Hortensia Martinez-Preciado
Keyword(s):  
Solution Polymerization ◽  
Sensor Performance ◽  
Polymerization Method ◽  
Ultraviolet Sensor

scholarly journals Highly exfoliated montmorillonite clay reinforced thermoplastic polyurethane elastomer:in situpreparation and efficient strengthening

RSC Advances ◽  
2019 ◽  
Vol 9 (15) ◽  
pp. 8184-8196 ◽  
Author(s):  
Jingshui Xu ◽  
Lihua Cheng ◽  
Zhong Zhang ◽  
Ling Zhang ◽  
Cen Xiong ◽  
...  
Keyword(s):  
Thermoplastic Polyurethane ◽  
Montmorillonite Clay ◽  
Solution Polymerization ◽  
Polyurethane Elastomers ◽  
Thermoplastic Polyurethane Elastomers ◽  
Mmt Clay ◽  
Polymerization Method

Highly exfoliated montmorillonite (MMT) clay reinforced thermoplastic polyurethane elastomers (TPUs) were prepared by anin situsolution polymerization method.

scholarly journals Hydrogels Are Reinforced with Colombian Fique Nanofibers to Improve Techno-Functional Properties for Agricultural Purposes

Agriculture ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 117
Author(s):  
Marcelo A. Guancha-Chalapud ◽  
Liliana Serna-Cock ◽  
Diego F. Tirado
Keyword(s):  
Cellulose Nanofibers ◽  
Polymer Chains ◽  
Reactive System ◽  
Solution Polymerization ◽  
Network Stability ◽  
Net Production ◽  
Swelling Capacity ◽  
Hydrogel Formulation ◽  
Fique Fibers ◽  
Polymerization Method

Colombia is the world’s largest producer of fique fibers (Furcraea bedinghausii), with a net production of 30,000 tons per year. This work proposes to revalue waste from the Colombian fique agroindustry. For this purpose, cellulose nanofibers were obtained from fique and used as reinforcement material to create acrylic superabsorbent hydrogels. Unreinforced acrylic hydrogels (AHR0) and acrylic hydrogels reinforced with fique nanofibers at 3% w/w (AHR3), 5% w/w (AHR5), and 10 % w/w (AHR10) were synthesized using the solution polymerization method. The best hydrogel formulation for agricultural purposes was chosen by comparing their swelling behavior, mechanical properties, and using scanning electron microscopy (SEM). By raising the nanofiber concentration to 3% (AHR3), the best-chosen formulation, the interaction between the nanofibers and the polymer matrix increased, which favored the network stability. However, beyond AHR3, there was a higher viscosity of the reactive system, which caused a reduction in the mobility of the polymer chains, thus disfavoring the swelling capacity. The reinforced hydrogel proposed in this study (AHR3) could represent a contribution to overcoming the problems of land dryness present in Colombia, an issue that will worsen in the coming years due to the climate emergency.

Gas sensing response of nanostructured trirutile-type CoSb2O6 synthesized by solution-polymerization method

2008 ◽  
Vol 132 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Carlos R. Michel ◽  
Alma H. Martínez ◽  
Sergio Jiménez
Keyword(s):  
Gas Sensing ◽  
Solution Polymerization ◽  
Polymerization Method

Study on the Preparation and Properties of PAA/BC/Na-MMT Composites

2011 ◽  
Vol 236-238 ◽  
pp. 1766-1769
Author(s):  
Hui Ling Shen ◽  
Li Juan Long ◽  
Shi Ru Jia
Keyword(s):  
Thermal Stability ◽  
Aqueous Solution ◽  
Network Structure ◽  
Layered Structure ◽  
Polyacrylic Acid ◽  
Sem Analysis ◽  
Solution Polymerization ◽  
Aqueous Solution Polymerization ◽  
Polymerization Method ◽  
Thermal Stability Of

By means of aqueous solution polymerization method, the composites of polyacrylic acid (PAA)/Bacterial cellulose (BC)/Na-MMT and PAA/Na-MMT were prepared respectively. The effects of Na-MMT content on the properties of PAA/Na-MMT and BC content on the properties of PAA/BC/Na-MMT composites were investigated. The results show that with appropriate increasing Na-MMT, the composites has good salt-resistant ability and thermal stability, mean while, the water-absorbing capacity of PAA/Na-MMT composites is significantly increased. Comparing with that of the PAA/Na-MMT hydrogel, with addition of BC content, the water-absorbing capacity and thermal stability of PAA/BC/Na-MMT are enhanced in a certain degree. The SEM analysis indicate that there are more network structure in the composites hydrogel. XRD result shows that the layered structure of Na-MMT is stripped and the prepared composites achieves peel compound.

scholarly journals Novel PEEK Copolymer Synthesis and Biosafety – I: Cytotoxicity Evaluation for Clinical Application

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1803
Author(s):  
Chon ◽  
Yang ◽  
Lee ◽  
Kim ◽  
Jeon ◽  
...  
Keyword(s):  
Thermal Characteristics ◽  
In Vitro Cytotoxicity ◽  
Cytotoxicity Test ◽  
Solution Polymerization ◽  
The Novel ◽  
Test Results ◽  
Diphenyl Sulfone ◽  
Peek Composite ◽  
Polymerization Method

In this research, we synthesized novel polyetheretherketone (PEEK) copolymers and evaluated the biosafety and cytotoxicity of their composites for spinal cage applications in the orthopedic field. The PEEK copolymers and their composites were prepared through a solution polymerization method using diphenyl sulfone as a polymerization solvent. The composite of PEEK copolymer showed good mechanical properties similar to that of natural bone, and also showed good thermal characteristics for the processing of clinical use as spine cage. The results of an in vitro cytotoxicity test did not show any evidence of a toxic effect on the novel PEEK composite. On the basis of these cytotoxicity test results, the PEEK composite also proved its in vitro biosafety for application to an implantable spine cage.

Synthesis of Sodium Salt of Poly(acrylic acid-maleic anhydride) Dispersant and in 75% Thifensulfuron WDG Application

2012 ◽  
Vol 550-553 ◽  
pp. 873-876 ◽  
Author(s):  
Shu Jing Liu ◽  
Zhi Li ◽  
Zhi Wang
Keyword(s):  
Thermal Decomposition ◽  
Maleic Anhydride ◽  
Acrylic Acid ◽  
Sodium Salt ◽  
Decomposition Rate ◽  
Solution Polymerization ◽  
Technical Indicators ◽  
Polymerization Method ◽  
Poly Acrylic Acid

The sodium salt of Poly(acrylic acid-maleic anhydride) was prepared by solution polymerization method and applied to 75% thifensulfuron WDG. The results show that granule suspension rate all achieves 85% above, disintegrating time is less than 60 seconds, thermal decomposition rate is less than 3%.That meet WDG various technical indicators.

Research on Absorbing Heavy Metal Ions of Landfill Leachate by PAMPS

2014 ◽  
Vol 955-959 ◽  
pp. 2192-2195
Author(s):  
Yong Gang Zeng
Keyword(s):  
Landfill Leachate ◽  
Sulfonic Acid ◽  
Heavy Metal Ions ◽  
Adsorption Properties ◽  
Solution Polymerization ◽  
Removal Rates ◽  
Adsorption Effect ◽  
Adsorption Time ◽  
Adsorbent Dosage ◽  
Polymerization Method

This paper made the high absorbent resins poly 2-acrylamide-2-methyl propane sulfonic acid (PAMPS) by solution polymerization method, researched its adsorption properties to heavy metals Cu2+ and Zn2+ from landfill leachate, and studied the adsorbent dosage, pH and the adsorption times effect on adsorption effect. The results indicated: when the adsorbent dosage was 25 g/L, pH was 6.5 and adsorption time was 45 minitues, the removal rates of Cu2+ by PAMPS reached 89.5%. When the adsorbent dosage was 35 g/L, pH was 6.5 and adsorption time was 55 minitues, the removal rates of Zn2+ by PAMPS reached 96.8%.

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