scholarly journals Thermokinetic parameters evaluation using reaction calorimetry: Application to butyl methacrylate solution radical polymerization

2020 ◽  
Vol 691 ◽  
pp. 178730 ◽  
Author(s):  
Isabelle Lahoud ◽  
Laurent Balland ◽  
Nicolas Brodu ◽  
Imed Ben Talouba ◽  
Nordine Mouhab ◽  
...  
2017 ◽  
Vol 12 (2) ◽  
pp. 1700046 ◽  
Author(s):  
David Victoria-Valenzuela ◽  
Jorge Herrera-Ordonez ◽  
Antonio Arcos-Casarrubias ◽  
Humberto Vazquez-Torres

2008 ◽  
Vol 29 (3) ◽  
pp. 264-264
Author(s):  
Yasuyuki Kagawa ◽  
Masahiro Kawasaki ◽  
Per B. Zetterlund ◽  
Hideto Minami ◽  
Masayoshi Okubo

2012 ◽  
Vol 485 ◽  
pp. 84-87
Author(s):  
Jun Fang ◽  
Yong Bin Wu ◽  
Yan Mei Zhang

A series of hydroxyl conducting anion exchange membranes based on the copolymer of vinylbenzyl chloride, butyl methacrylate and fluoro-polyacrylate were prepared by radical polymerization, quaternization and alkalization. The reaction conditions of polymerization were discussed and the potential applications of the resulting membranes in alkaline fuel cells were assessed. The results show that the membranes have adequate conductivity for fuel cell application.


Nanomaterials ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 591 ◽  
Author(s):  
Monika Zygo ◽  
Miroslav Mrlik ◽  
Marketa Ilcikova ◽  
Martina Hrabalikova ◽  
Josef Osicka ◽  
...  

This study reports the utilization of controlled radical polymerization as a tool for controlling the stimuli-responsive capabilities of graphene oxide (GO) based hybrid systems. Various polymer brushes with controlled molecular weight and narrow molecular weight distribution were grafted from the GO surface by surface-initiated atom transfer radical polymerization (SI-ATRP). The modification of GO with poly(n-butyl methacrylate) (PBMA), poly(glycidyl methacrylate) (PGMA), poly(trimethylsilyloxyethyl methacrylate) (PHEMATMS) and poly(methyl methacrylate) (PMMA) was confirmed by thermogravimetric analysis (TGA) coupled with online Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Various grafting densities of GO-based materials were investigated, and conductivity was elucidated using a four-point probe method. Raman shift and XPS were used to confirm the reduction of surface properties of the GO particles during SI-ATRP. The contact angle measurements indicated the changes in the compatibility of GOs with silicone oil, depending on the structure of the grafted polymer chains. The compatibility of the GOs with poly(dimethylsiloxane) was also investigated using steady shear rheology. The tunability of the electrorheological, as well as the photo-actuation capability, was investigated. It was shown that in addition to the modification of conductivity, the dipole moment of the pendant groups of the grafted polymer chains also plays an important role in the electrorheological (ER) performance. The compatibility of the particles with the polymer matrix, and thus proper particles dispersibility, is the most important factor for the photo-actuation efficiency. The plasticizing effect of the GO-polymer hybrid filler also has a crucial impact on the matrix stiffness and thus the ability to reversibly respond to the external light stimulation.


Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 458 ◽  
Author(s):  
Federico Di Sacco ◽  
Andrea Pucci ◽  
Patrizio Raffa

Novel, multipurpose terpolymers based on styrene (PS), tert-butyl methacrylate (tBMA) and glycidyl methacrylate (GMA), have been synthesized via Atom Transfer Radical Polymerization (ATRP). Post-synthetic modification with 1-pyrenemethylamine (AMP) allows non-covalent functionalization of carbon nanotubes, eventually yielding a conductive nanocomposite materials capable of interacting with different Volatile Organic Compounds (VOCs) by electrical resistance variation upon exposure. Moreover, facile hydrolysis of the tBMA group yields polyelectrolytic macrosurfactants with remarkable thickening properties for promising applications in water solution, such as Enhanced Oil Recovery (EOR).


Sign in / Sign up

Export Citation Format

Share Document