Front Cover: In article number 2200045, Thomas Hellweg and co-workers describe the preparation of a variety PNNPAM-based microgels copolymerized with methacrylic acid loaded monodisperse catalytically active palladium nanoparticles. The leads to interesting pH- thermoresponsive properties gel particles shows ambivalent influences regarding catalytic activity embedded cover page TEM images syste...

OBJECTIVES The purpose of this study was to measure and analyze the mechanical properties of several composite materials designed for dental restoration. METHODS The materials were composed of a visible light-curing monomer mixture (either Bis-GMA+TEGDMA or Bis-GMA+HEMA) as a matrix and hydroxyapatite (either microscopic or nanoscopic particles) as a reinforcing filler. The surface of the hyd...

The choice of the functional monomer is a key point in design molecularly imprinted polymers (MIPs) because its directional interactions with template molecules are required to form molecular imprints acting as selective recognition sites for adsorption. Methacrylic acid (MAA) has very often been employed imprinting basic molecules. Strong acid-base lead H+ transfer and weak hydrogen bonding be...

The objective of the present study is to develop and investigate the swelling behavior of pH-sensitive Superporous Hydrogel (SPH) and SPH composite (SPHC). A novel superporous hydrogel containing poly (methacrylic acid-co-acrylamide) was synthesized from methacrylic acid and acrylamide through the aqueous solution polymerization, using N,N-methylenebisacrylamide as a crosslinker and ammonium pe...

carvacrol is one of the main components of the eo of some labiatae (laminaceae) members like oregano, thyme and savory. carvacrol has a lot of health benefits for example, antibacterial, and antioxidant activity.we synthesized some silicon derivatives of carvacrol, and characterized them by standard methods. then the monomer of dimethylvinylsilyl carvacrol was synthesized. copolymer of this mon...