Physical and Chemical Probes of the Bond Strength between Trialkylboranes and Amines and Their Utility as Stabilized Free Radical Polymerization Catalysts

2006 ◽  
Vol 39 (7) ◽  
pp. 2507-2513 ◽  
Author(s):  
Mark F. Sonnenschein ◽  
Steven P. Webb ◽  
O. David Redwine ◽  
Benjamin L. Wendt ◽  
Nelson G. Rondan
Keyword(s):  
Free Radical ◽  
Bond Strength ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Chemical Probes ◽  
Polymerization Catalysts ◽  
Physical And Chemical

scholarly journals New Nanocomposite Derivatives From Thiadiazole Polymers /Silica Synthesis and Characterization using Free Radical Polymerization

2019 ◽  
Vol 32 (1) ◽  
pp. 27 ◽  
Author(s):  
Nasir Sadoon Abid ◽  
Maha T. Sultan ◽  
Jumbad H. Tomma
Keyword(s):  
Free Radical ◽  
Silica Nanoparticles ◽  
Radical Polymerization ◽  
Chemical Properties ◽  
Free Radical Polymerization ◽  
Polymer Chains ◽  
X Ray ◽  
Silica Nanocomposites ◽  
Ft Ir ◽  
Physical And Chemical

A new class of thiadiazole /silica nanocomposites with chemical bonds between thiadiazole monomers and modified nanosilica surface were synthesized by free radical polymerization. Presence silica nanoparticles in the structure of  nanocomposite showed effectively improve the physical and chemical properties of Producing polymers. A nanocomposite material with feature properties comparison with their polymers, The structure and morphology of the synthesis materials were investigated by FT-IR spectrum which display preparation new thiadiazole compounds and polymerization monomers. FT-IR showed disappeared double bond (C=C) of monomers, due to produce long chains of thiadiazole polymers and nanocomposite. X-ray diffraction gave idea about crystalline structure of nanoparticles and nanocomposite , X-ray showed that silica nanoparticles have high intensity at 18000 , due to nanoscale of particles which allowed for particles aggregation together. While nanocomposite show low intensity due to reacted thiadaizole polymer chains with silica nanoparticles surface. The distribution of nanoparticles had characterized by Atomic forces microscopy AFM. AFM results shown roughness in the surfaces of nanocomposites C1 and C2, comparison with silica nanoparticles which gave smooth surface. The roughness attributed to reaction between functionalized surface of silica nanoparticles and chains of thiadaizole polymers, which led to change in size particles distribution and surface of particles that refer to nanocomposite.    

Non-isothermal Kinetics of Free Radical Polymerization of 2-Phenylethyl (Meth)acrylate

2018 ◽  
Vol 8 (3) ◽  
pp. 585-594
Author(s):  
Khdbudin Mulani ◽  
Ravindra Ghorpade ◽  
Surendra Ponrathnam ◽  
Nayaku Chavan ◽  
Kamini Donde
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Isothermal Kinetics ◽  
Kinetics Of

Oxygen-Initiated Free-Radical Polymerization of Alkyl Acrylates at High Temperatures

2021 ◽  
Author(s):  
Shi Liu ◽  
Lauren Chua ◽  
Ahmad Arabi Shamsabadi ◽  
Patrick Corcoran ◽  
Abhirup Patra ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
High Temperatures ◽  
Free Radical Polymerization ◽  
Alkyl Acrylates

Development of Novel Colorimetric Thermometer Based on Poly(N-vinylcaprolactam) with Push-π-Pull Tricyanofuran Hydrazone Anion Dye

2021 ◽  
Author(s):  
Meram S Abdelrahman ◽  
Tawfik A Khattab ◽  
Samir Kamel
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization

Thermochromic poly(N-vinylcaprolactam-co-tricyanofuran hydrazone) [Poly(VC-co-TCFH)] gel labeled with halochromic chromophore was developed using traditional free radical polymerization. Novel vinyl-containing tricyanofuran hydrazone (TCFH) halochromic chromophore bearing a hydrazone sensor group was generated...

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