Monomer Formulations Research Articles

Photoinitiators: An overview of mechanisms and applications.

Light-curable monomer and resin formulations are increasingly developed, due to the rapid growth of the industrial applications in various aeras, such as coatings and varnishes (optical fibers, wood, plastics, papers ...), adhesives, dental and medical equipment, inks, metal decoration, flooring, imaging, microelectronics [1][2]. One of the most widely used reaction is a light-induced polymerization [3] which readily transforms a liquid resin into a solid film. Improvement of the systems requires further investigation [4] on the (photo)-physical and (photo)-chemical processes involved (in particular, the photoreactivity of sensitizers used to start the reaction) and new ideas concerned with the use of powerful irradiation devices such as lasers in the case of specific applications: direct writing of microcircuits, 3D machining, information storage, manufacture of holographic optical elements [5].

Adhesive bonding of various materials to hard tooth tissues: XXIII. Isotonic monomer formulations.

With regard to adhesion to dentin by chemical mechanisms, the vitality of odontoblasts and contiguous pulpal cells might require that materials influencing the dentinal tubules be maintained within certain limits of osmotic pressure. Resins for use in adhesive formulations can be made isotonic with vital tissues by adjusting the proportions of hydrophilic monomers and the water contents of the formulations.

Influence of the ratio of styrene and acrylonitrile in crosslinked polymeric binders for use in high‐temperature polymer concrete composites

AbstractThe feasibility of using a monomer composition based on a styrene–acrylonitrile copolymer as a binder in high‐strength and chemically resistant polymer concrete was demonstrated earlier. From this work it is clear that properties of the polymer concrete composite are dependent on the styrene/acrylonitrile ratio. This paper deals with the study of the effect of the styrene/acrylonitrile ratio in styrene–acrylonitrile–acrylamide–trimethylolpropane trimethacrylate monomer formulations on the thermomechanical properties of polymer concrete composites.

A stabilizing comonomer. II. Stabilization and polymerization characteristics.

The hardening times of an experimental composite material and the gel times of a two-liquid monomer formulation increased with higher concentrations of a stabilizing comonomer (BHM). The compound, BHM (3,5-di-tert-butyl-4-hydroxybenzyl methacrylate), polymerized under anaerobic conditions when initiated with 2-cyano-2-propyl radicals.

Amine accelerators for methacrylate resin systems.

Tertiary aromatic amines were synthesized with various nitrogen and ring substituents. They were compared with commercial homologues using composites based on dimethacrylate monomer formulations containing benzoyl peroxide. Equimolar amounts of the different amines were the only variables. Although accelerating ability was a function of both ring and nitrogen substitution, color stability was influenced more by the substituents on the ring than by the substituents on the nitrogen