Poly propane-sulphonate

Other polymer systems that have been studied with the electrochemical quartz crystal microbalance are poly(tetracycaoquinyldimethane) [91], poly(3-methylthiophene) [92], diheptylviologen bromide [93], polyani-line/Nafion composite films [94] and polypyrrole/3-(pyrrol-l-yl) propane sulphonate composites [95], and poly(pyrrole) composites with several anions [96-97]. 

ERPs poly(2-acrylamido-2-metliyl-propane sulphonic acid-co-n-butylmethacrylate) based were used to delivery edrophonium hydrochloride and hydro-cortisone in a pulsatile manner [83]. The control of drug release was achieved by varying the intensity of electric stimulation in distilled deionized water. For a positively charged drug, the release pattern depends on ion exchange between hydrogen ion produced by electrolysis of water and positively charged solute. 

PAMPS Poly(2-acrylamide-2-methyl propane sulphonic acid)... 

Polymer electrolytes based on poly(2-acrylamido-2-methyl-l-propane sulphonic acid) (polyAMPS) and its copolymer have been widely used for the synthesis of both proton- and lithium-conducting hydrogels or polyelectrolytes. In order to achieve high conductivity, low molecular weight polar solvents such as DMA, dimethylsulphoxide (DMSO), EC, PC and ionic liquids are usually added. All dry ECD or ethylene carbonate (EC) windows using gel electrolytes based on polyAMPS were obtained7 ... 

A variety of poly/dihydric oils are used for the preparation of glyddyl ether-type epoxy resins. These include bisphenols, namely bisphenol-A (BPA), bisphenol-F (BPF), bisphenol-S (BPS) and bisphenol-H (BPH) and so on. Other aromatic diols and polyols such as phenolic resin, MF resins and hyperbranched polyol may also be used in the preparation of vegetable oil-based epoxy resins. Bisphenol-A (2,2-bis(4-hydroxyphenyl)propane) is one of the most widely used aromatic diols for the synthesis of epoxy resin. The resins are commonly used as lacquers for coated metal products such as food cans, bottle tops and water pipes. There are also reports on the use of bisphenol-S (BPS) (bis(4-hydroxyphenyl) sulphone), in the synthesis of epoxy resin. The advantages of resistance to deformation by heat and improvement of thermal stability were observed for such epoxy resins. The presence of sulphone group (BPS-based epoxy resin) in the epoxy resin exhibits better gel time than BPA-based epoxy. Another important diol, namely bis(4-hydroxydiphenyl)methane or bisphenol-F (BPF) is used for the synthesis of low viscosity epoxy resins. BPF generally comprises several isomers such as bis(2-hydroxylphenyl)methane (i.e. ortho-ortho isomer), bis(4-hydroxylphenyl)methane (i.e. para-para isomer) and... 

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