In the present work, reactive blending of copolymers with complementary functional groups was applied to control their antimicrobial activity and antifouling action in real conditions. For this purpose, two series copolymers, poly(4-vinylbenzyl chloride-co-acrylic acid), P(VBC-co-AAx), poly(sodium 4-styrenesulfonate-co-glycidyl methacrylate), P(SSNa-co-GMAx), were synthesized via free radical copolymerization further modified by incorporation biocidal units either covalently (4-vinyl benzyl...

Abstract The modification of cotton fabrics with water-soluble cationic copolymers for salt-free dyeing applications reactive dyes is explored in the present work. To this end, a family bifunctional was designed through chemical poly(4-vinyl benzyl chloride), PVBC, triethylamine, TEAM. These were applied onto aqueous alkaline solutions at moderate temperature (60 °C). successful verified characterization modified samples Raman and XPS spectroscopy. Moreover, polymer coverage fabric order...

Abstract This review is focused on the design and synthesis of new high‐temperature polymer electrolytes based aromatic polyethers bearing polar pyridine moieties in main chain. Such materials are designed to be used electrolyte fuel cells operating at temperatures higher than 100 °C. New monomers polymers have been synthesized characterized within this field respect their suitability for specific application. Copolymers with optimized structures order combine excellent film‐forming...

Novel aromatic polyethers bearing polar pyridine units along the main chain and side cross-linkable propenyl groups have been successfully synthesized. Their properties relating to their ability be used as polymer electrolyte membranes for high temperature fuel cell applications, were thoroughly investigated. Cross-linked obtained by thermal curing of polymers with use a bisazide cross-linking agent. The glass transition temperatures cross-linked determined dynamic mechanical analysis found...

Polymeric membranes, based on a polysulfone-type aromatic polyether matrix, were successfully developed via the non-solvent induced phase separation (NIPS) method. The polyethersulfone type polymer poly[2-(4-(diphenylsulfonyl)-phenoxy)-6-(4-phenoxy) pyridine] (PDSPP) was used as membrane and mixed with its sulfonated derivative (SPDSPP) polymeric porogen. SPDPPP added to impart hydrophilicity, while at same time maintaining interactions non-sulfonated forming matrix. Different techniques for...

Humidity-responsive materials have attracted increasing attention for their potential use in various applications, e.g., sensors, soft robotics, and human-machine interfaces. Much effort has been focused on the of ionic liquids construction humidity-responsive sensors; yet, not enough paid susceptibility used poly(ionic liquid)s to microorganisms. This is especially relevant wide polymers biomedical wearable body-condition sensors or healthcare control systems. We herein describe development...

The encapsulation of active components is currently used as common methodology for the insertion additional functions like self-healing properties on a polymeric matrix. Among different approaches, polyurea microcapsules are in applications. design (MCs) containing diisocyanate compounds, namely isophorone (IPDI) or hexamethylene (HDI), explored present work. shell MCs formed through interfacial polymerization oil-in-water emulsions between highly methylene diphenyl (MDI) and...

A new high-molecular-weight, soluble, wholly aromatic polyether bearing polar pyridine and phosphinoxide groups along the main chain is presented. This easily processable presents excellent film-forming properties, high glass-transition temperature (up to 260 °C), thermal stability up 500 °C, all together combined with an ability form ionically conductive materials after doping phosphoric acid. The throughout polymeric chains enable acid uptake subsequent ionic conductivity for doped...

Spectroscopic studies on a series of rod-coil block copolymers with terfluorene as the rigid segment demonstrate that main cause color instability in fluorene oligomers and polymers is aggregate and/or excimer formation not presence alone keto defects (fluorenone formation) along molecular chain. Keto defects, when present, contribute to appearance undesirable "green" emission band but are leading instability. Thus, synthesis materials where aggregation interchain, intersegment interactions...

Abstract Summary: Novel poly(aryl ether sulfone) copolymers containing 2,5‐biphenylpyridine and tetramethyl biphenyl moieties were synthesized by polycondensation of 4‐fluorophenyl sulfone with 2,5‐(4′,4″ dihydroxy biphenyl)pyridine diol. Copolymers different molecular weights monomer compositions obtained. These exhibit excellent film‐forming properties, mechanical integrity, high modulus up to 250 °C, glass transition temperatures (above 280 °C) as well thermal stability 400 °C. In...

New copolymers bearing different degree of grafted polyquinoline segments onto a polythiophene backbone were obtained via atom transfer radical polymerization vinyl quinoline monomer using properly modified as macroinitiator. The initiator preparation was based on the bromination to certain extent commercially available poly(3-hexylthiophene-2,5-diyl) (P3HT) and subsequent conversion bromine groups proper propionyl bromide units through three-step process. Polymerization monomer, typical...

The synthesis of a new alternating copolymer (PTBzT2-C12) based on thiophene-benzothiadiazole-thiophene (TBzT) segment and thieno[3,2-b]thiophene unit its utilization as electron donor in photovoltaic bulk heterojunctions are reported. has been obtained via Stille cross-coupling reaction. material's optical electrochemical properties, solution or thin films, have investigated using UV-visible absorption well photoluminescence spectroscopy cyclic voltammetry. A significant red-shift the edge...

Despite the fact that pyridinium based anion exchange membranes for alkaline fuel cells suffer from low stability due to hydroxide attack in ortho position and subsequent irreversible oxidation 2-pyridone, new copolymers consisting of aromatic polyethers bearing 2,6-position protected units as conducting groups backbone, have been designed. In particular, N-methyl functional group prepared by copolymerization corresponding 2,6-bis(4-hydroxyphenyl)pyridine or 2,6-difluoropyridine with various...

Biocidal coatings that are based on quaternized ammonium copolymers were developed after blending and crosslinking studied as a function of the ratio reactive groups type biocidal groups, curing at room temperature or 120 °C. For this purpose, two series with complementary poly(4-vinylbenzyl chloride-co-acrylic acid), P(VBC-co-AAx), poly(sodium 4-styrenesulfonate-co-glycidyl methacrylate), P(SSNa-co-GMAx), synthesized via free radical copolymerization further modified resulting in covalently...

New pyridinium based PILs have been prepared by modification of their precursors on high molecular weight aromatic polyethers bearing main chain pyridine units. The proposed methodology involves the conversion to ionic analogues via N-methylation reaction, followed anion exchange methathesis reaction result in with desirable anions (tetrafluoroborate and bis(trifluoromethylsulfonyl)imide). These show excellent thermal stability, mechanical properties, most importantly can form very thin,...

Rod−coil diblock copolymers of 2-hydroxyethyl methacrylate (HEMA) with well-defined oligofluorene initiator were synthesized using the atom transfer radical polymerization (ATRP) technique. The resulting characterized spectroscopic (1H NMR, GPC), optical (UV, photoluminesence), and thermal (DSC) techniques. incorporation into polymeric chain was confirmed by methods, while strong evidence for microphase separation obtained both from DSC AFM. A detailed AFM study surface morphology in thin...