Emulsifier-free poly(methyl methacrylate-styrene) [P(MMA-St)] nanospheres with an average particle size of 100 nm were synthesized in an isopropyl alcohol-water medium by a solvothermal method. Then, through radical graft copolymerization of thermo-sensitive monomer N-isopropylacrylamide (NIPAm) and hydrophilic monomer acrylic acid (AA) onto the surface of P(MMA-St) nanospheres at 80 °C, a seri...

Objective: The rough surfaces of removable appliances used in pediatric dentistry or orthodontics, may result inan environment for biofilm accumulation, yielding to enamel demineralization. This study aimed assess theeffects adding nanoparticles bioactive glass polymethylmethacrylate promote the antibacterial activityin acrylic resins. Material and Methods: Acrylic resin specimens (20x20x1mm3) ...

This research paper deals with the in vacuo synthesis of pHand temperaturesensitive hydrogels of xanthan gum with different vinyl monomer mixtures such as acrylamide-co-acrylic acid (AAm-co-AA), acrylamide-co-acrylonitrile (AAmco-AN), and acrylamide-co-methacrylic acid (AAm-co-MAA), keeping acrylamide as the principal monomer. Different optimised reaction parameters for the graft copolymerisati...

Some pH responsive polymeric matrix of Linseed (Linum usitatissimum), L. hydrogel (LSH) was prepared by free radical polymerization using potassium persulfate (KPS) as an initiator, N,N-methylene bisacrylamide (MBA) as a crosslinker, acrylic acid (AA) and methacrylic acid (MAA) as monomers; while ketoprofen was used as a model drug. Different formulations of LSH-co-AA and LSH-co-MAA were formul...

The preparation of an itaconic acid-based oligomer and its polymerization with acrylic acid via aqueous solution copolymerization are described herein for application as novel superabsorbent polymers (SAPs). structure the SAP is characterized using Fourier transform infrared (FT-IR) spectroscopy. In addition, absorption properties SAPs various contents degrees monomer neutralization evaluated b...

Novel UV curable acrylic pressure-sensitive adhesives (PSAs) with exceptional flame retardancy and promising two-way shape memory effect have been developed using a commercial diethyl phosphoramidate as multifunctional tackifier for the first time. The abundant hydrogen bonds high viscosity of resultant networks contribute to low temperature repeatable adhesions. PSA 5 wt % exhibited best overa...

Abstract Herein an efficient approach to produce functional polypropylene via solvent assisted solid-phase grafting process is reported, in which acrylic acid, methyl methacrylate and maleic anhydride are used as multi-monomers, 2,2?-azobis(2-methylpropionitrile) initiator ether swelling carrier. The effects of various factors such the species dosage, time temperature, monomer concentrations, r...

SINCE Ridley (1951) described his operation, there has been considerable interest and speculation about the possible reaction of the human eye to the presence of an acrylic lenticulus. The clinical impression has been that a certain amount of irritation occurs, as evidenced by frequent iridocyclitis and almost invariable pigment disturbance, but a difference of opinion appears to exist as to th...