نتایج جستجو برای: Styrene-based ionomers

تعداد نتایج: 2940428  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2006
sayed mohammad taghi sadeghi

ionomers are generally described by copolymers having either acrylic or methacylic acid as one component and the other component is mostly either ethylene or styrene. the objective of this research was to study the thermal behaviour and stability of ionomers of styrene with some alkali metal acrylates. these materials have been synthesized by neutralization of the respective copolymer containin...

Ionomers are generally described by copolymers having either acrylic or methacylic acid as one component and the other component is mostly either ethylene or styrene. The objective of this research was to study the thermal behaviour and stability of ionomers of styrene with some alkali metal acrylates. These materials have been synthesized by neutralization of the respective copoly...

Journal: :Journal of the Japan Society of Colour Material 1972

2014
Wenqin Wang Karen I. Winey

Ion-containing polymers are of intense interest for applications in energy storage and conversion devices. The conductivities of these polymers are determined by both the ion mobility and the total number of mobile charge carriers, which in turn depend on the chemical structure and morphology. To rationally design ioncontaining polymers with high conductivity, a comprehensive understanding of t...

Journal: :Australian journal of chemistry 2009
Steevens N S Alconcel Gregory N Grover Nicholas M Matsumoto Heather D Maynard

Ionomers containing sodium 4-styrene sulfonate (4SS) and poly(ethylene glycol) methyl ether acrylate (PEGA) were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. The polymerization was mediated by 1-phenylethyl dithiobenzoate chain transfer agent in a dimethylformamide/water solvent system. Well-defined copolymers of pPEGA-co-4SS were produced with molecula...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2008
John W Nicholson Beata Czarnecka

OBJECTIVES The biological effects of resin-modified glass-ionomer cements as used in clinical dentistry are described, and the literature reviewed on this topic. METHODS Information on resin-modified glass-ionomers and on 2-hydroxyethyl methacrylate (HEMA), the most damaging substance released by these materials, has been collected from over 50 published papers. These were mainly identified t...

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