scholarly journals Effect of Graphene Oxide on the Reaction Kinetics of Methyl Methacrylate In Situ Radical Polymerization via the Bulk or Solution Technique

Polymers ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 432 ◽  
Author(s):  
◽  
◽  
Keyword(s):  
Graphene Oxide ◽  
Methyl Methacrylate ◽  
Reaction Kinetics ◽  
Radical Polymerization ◽  
Solution Technique ◽  
Kinetics Of

Synthesis, characterization and reaction kinetics of PMMA/silver nanocomposites prepared via in situ radical polymerization

2015 ◽  
Vol 72 ◽  
pp. 256-269 ◽  
Author(s):  
Mohammad Nahid Siddiqui ◽  
Halim Hamid Redhwi ◽  
Efthymia Vakalopoulou ◽  
Ioannis Tsagkalias ◽  
Maria D. Ioannidou ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Radical Polymerization ◽  
Silver Nanocomposites ◽  
Kinetics Of

scholarly journals Effect of Na- and Organo-Modified Montmorillonite/Essential Oil Nanohybrids on the Kinetics of the In Situ Radical Polymerization of Styrene

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 474
Author(s):  
Ioannis S. Tsagkalias ◽  
Alexandra Loukidi ◽  
Stella Chatzimichailidou ◽  
Constantinos E. Salmas ◽  
Aris E. Giannakas ◽  
...  
Keyword(s):  
Essential Oil ◽  
Radical Polymerization ◽  
Food Packaging ◽  
In Situ Polymerization ◽  
Average Molecular Weight ◽  
Monomer Conversion ◽  
Hydroxyl Groups ◽  
Modified Montmorillonite ◽  
Kinetics Of

The great concern about the use of hazardous additives in food packaging materials has shown the way to new bio-based materials, such as nanoclays incorporating bioactive essential oils (EO). One of the still unresolved issues is the proper incorporation of these materials into a polymeric matrix. The in situ polymerization seems to be a promising technique, not requiring high temperatures or toxic solvents. Therefore, in this study, the bulk radical polymerization of styrene was investigated in the presence of sodium montmorillonite (NaMMT) and organo-modified montmorillonite (orgMMT) including thyme (TO), oregano (OO), and basil (BO) essential oil. It was found that the hydroxyl groups present in the main ingredients of TO and OO may participate in side retardation reactions leading to lower polymerization rates (measured gravimetrically by the variation of monomer conversion with time) accompanied by higher polymer average molecular weight (measured via GPC). The use of BO did not seem to affect significantly the polymerization kinetics and polymer MWD. These results were verified from independent experiments using model compounds, thymol, carvacrol and estragol instead of the clays. Partially intercalated structures were revealed from XRD scans. The glass transition temperature (from DSC) and the thermal stability (from TGA) of the nanocomposites formed were slightly increased from 95 to 98 °C and from 435 to 445 °C, respectively. Finally, better dispersion was observed when orgMMT was added instead of NaMMT.

Hexamethylphosphoramide as a highly reactive catalyst for the reversible-deactivation radical polymerization of MMA with an in situ formed alkyl iodide initiator

2017 ◽  
Vol 8 (39) ◽  
pp. 6073-6085 ◽  
Author(s):  
Yan-an Wang ◽  
Yan Shi ◽  
Zhifeng Fu ◽  
Wantai Yang
Keyword(s):  
Methyl Methacrylate ◽  
Radical Polymerization ◽  
Alkyl Iodide ◽  
Highly Efficient ◽  
Reversible Deactivation ◽  
Reversible Deactivation Radical Polymerization ◽  
Organic Catalyst

A novel and highly efficient organic catalyst for the reversible-deactivation radical polymerization (RDRP) of methyl methacrylate with anin situformed alkyl iodide initiator.

scholarly journals Reaction kinetics of organo-clay hybrid films: In-situ IRRAS, FIM and AFM studies

2010 ◽  
Vol 71 (3) ◽  
pp. 323-328 ◽  
Author(s):  
Syed Arshad Hussain ◽  
Md N. Islam ◽  
D. Bhattacharjee
Keyword(s):  
Reaction Kinetics ◽  
Hybrid Films ◽  
Organo Clay ◽  
Kinetics Of

Fast Gas-Solid Reaction Kinetics of Nanoparticles Unveiled by Millisecond In Situ Electron Diffraction at Ambient Pressure

2018 ◽  
Vol 57 (35) ◽  
pp. 11344-11348 ◽  
Author(s):  
Jian Yu ◽  
Wentao Yuan ◽  
Hangsheng Yang ◽  
Qiang Xu ◽  
Yong Wang ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Reaction Kinetics ◽  
Ambient Pressure ◽  
Solid Reaction ◽  
Kinetics Of ◽  
Gas Solid Reaction

Graphene Quantum Dot beyond Electrocatalyst: An In Situ Electrolyte Catalyst towards Improved Reaction Kinetics of VO2+/VO2 + Redox Couples

2020 ◽  
Vol 167 (14) ◽  
pp. 140540
Author(s):  
Mani Ulaganathan ◽  
Karuppusamy Mariyappan ◽  
Subramanian Suresh ◽  
Pitchai Ragupathy
Keyword(s):  
Quantum Dot ◽  
Reaction Kinetics ◽  
Graphene Quantum Dot ◽  
Redox Couples ◽  
Kinetics Of
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