Preparation and characteristics of cross‐linkable polysulfone having methylene methacrylate side‐chain

Abstract

Polysulfone (PSF)s are amorphous polymers which possess excellent thermal stability and good optical properties. But they have drawbacks such as poor chemical resistance and high thermal expension property. In this study, we introduced crosslinkable acrylic moiety in PSF with side-chain using chloromethylation method. We prepared photosensitive PSF having methylene methacrylate side-chain from chloromethylated polysolfone (CMPSF). And we performed solvent casting films of the polysulfone methylene methacrylate (PSFMM) and produced the crosslinked PSF films via UV expose. Their properties such as the thermal, optical, gas barrier properties, and chemical resistance were measured by TGA, DSC, TMA, UV-transmittance, MOCON test, and solubility test. The crosslinked PSFMMs were insoluble in various protic and aprotic polar solvents. They have low CTE (coefficient of thermal expansion) value and gas barrier property improved according to increase of crosslinkable moiety.

Recent advances in the preparation of functionalized polysulfones

“…In order to avoid insoluble network formation, halomethylation can be performed with ZnC1 2 at low temperature or in dilute conditions with a small amount of catalyst. By reacting chloromethylated polysulfones with various nucleophilic groups, polysulfones were successfully functionalized with aldehyde, ester, amine, quaternary ammonium salts, azomethine groups, phosphonic groups, mercapto, azide groups, imidazolium groups, cinnamic groups, the poly(2‐gluconamidoethyl methacrylate) group and aspartic acid (Scheme ).…”

Electrical conductivity and optical properties of a new quaternized polysulfone

“…Polysulfone (PSF) is one of the most attractive polymeric materials used in the manufacture of synthetic polymer membranes and also in biomedical fields, due to its excellent properties, such as mechanical, thermal and chemical stability, as well as to its excellent film-forming properties [1,2]. Also, polysulfones exhibit the unique advantage of transparency, coupled with hydrolytic stability and heat resistance that makes them useful as covers and lids for hot serving dishes and containers, lids for medical sterilization trays, research lab animal cages, dairy processing equipment, flow meters, and sight glasses for chemical process equipment [3].…”

Chemical modification of chloromethylated polysulfones via click reactions

“…While these materials have excellent overall properties, their intrinsic hydrophobic nature precludes their use in membrane applications that require a hydrophilic character. Significant changes in membrane performance and new applications have been brought about by sulfonation,2–4 bromination,5, 6 Friedel–Crafts reactions,7, 8 nitration,9 lithiation,10, 11 halomethylation,12–16 etc. The reactions of chloromethyl groups of chloromethylated polysulfones by amination with a non‐quaternized derivative of 4,4′‐bipyridyl,17 thiourea,18 ethylenediamine and triethylamine12, 19 or transquaternization with azomethine monomers containing phenolic hydroxyl groups,20 ethylene glycol21 or sebacomethyltetramethyldisiloxane22 have been described in the literature.…”