Evaluation of highly reactive mono-methacrylates as reactive diluents for BisGMA-based dental composites

Kilambi, Harini; Cramer, Neil B.; Schneidewind, Lauren; Shah, Parag K.; Stansbury, Jeffrey W.; Bowman, Christopher N.

doi:10.1016/j.dental.2008.05.003

Cited by 35 publications

(25 citation statements)

References 24 publications

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“…Structure and included functionality (other than the reactive methacrylate groups) of the monomers determines these properties, which are largely but not exclusively, additive in nature when comonomer mixtures are formulated. In particular, polymerization reaction rates can be synergistically enhanced by appropriate combinations of monomers [19–20] and certain monomer structures contribute unusually high rates of polymerization [21]. …”

Section: Introductionmentioning

confidence: 99%

Dimethacrylate network formation and polymer property evolution as determined by the selection of monomers and curing conditions

2012

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Objectives This overview is intended to highlight connections between monomer structure and the development of highly crosslinked photopolymer networks including the conversion dependent properties of shrinkage, modulus and stress. Methods A review is provided that combines the polymer science and dental materials literature along with examples of relevant experimental results, which include measurements of reaction kinetics, photorheology as well as polymerization shrinkage and stress. Results While new monomers are continually under development for dental materials applications, mixtures of dimethacrylate monomers persist as the most common form of dental resins used on composite restorative materials. Monomer viscosity and reaction potential is derived from molecular structure and by employing real-time near-infrared spectroscopic techniques, the development of macromolecular networks is linked to the evolution of polymerization shrinkage (measured by linometer), modulus (measured by photorheometer), and stress (measured by tensometer). Relationships between the respective polymer properties are examined. Significance Through a better understanding of the polymer network formation and property development processes using conventional dimethacrylate monomer formulations, the rational design of improved materials is facilitated with the ultimate goal of achieving dental polymers that deliver enhanced clinical outcomes.

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Section: Introductionmentioning

confidence: 99%

Dimethacrylate network formation and polymer property evolution as determined by the selection of monomers and curing conditions

2012

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“…2,7,95,106,107 For biomedical materials, the risk of leachable unreacted monomer is significant and has lead to the utilization of dimethacrylates as typical photopolymerizable reactive diluents because, once either one of the methacrylate groups reacts, the monomer is no longer extractable. Furthermore, dimethacrylate reactive diluents polymerize far more rapidly than conventional monomethacrylates.…”

Section: Introductionmentioning

confidence: 99%

Toward an enhanced understanding and implementation of photopolymerization reactions

2008

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in Wiley InterScience (www.interscience.wiley.com).Photopolymerization reactions proceed rapidly at ambient conditions and are able to exhibit both temporal and spatial control, nevertheless their full potential has been limited by a lack of understanding of the polymerization kinetics and polymer network evolution as well as a lack of custom, functional monomers, and polymerization mechanisms. For the last 15 years, our group has sought to address these limitations by reaction engineering at both the fundamental and applied levels with a focus on increasing the understanding, potential, and implementation of photopolymerization reactions. In particular, we have modeled and experimentally validated the complex spatially dependent polymerization kinetics and network heterogeneity, and we have implemented these systems for applications improvement or development in lithography, microdevice fabrication, biomaterials, biodetection, dental materials, and surface coatings.An illustration of typical photopolymerization kinetic behavior is presented in Figure 2a, where the polymerization rate is plotted as a function of the double bond conversion for two different photoinitiation rates. Two polymerization regimes are clearly identifiable in each curve and are typical Here, the chain length dependence is most prominent at the early stages of the reaction, during autoacceleration and is largely absent at the higher conversions where reaction diffusion controlled termination dominates the termination reaction process. Figure adapted from ref. 80.

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“…Recently, many attention has been paid to photocurable systems, widely used in many industrial applications, like photoactive polymer-based systems applied in coating industry, paints or printing inks, adhesives composite materials and dental restorative formulations [1][2][3][4][5][6][7][8][9][10][11]. Usually, such a systems consist of mixtures of two or more monomers.…”

Section: Introductionmentioning

confidence: 99%

Elastic properties of some selected two-monomer systems as studied by Brillouin spectroscopy

Ziobrowski¹,

Drozdowski²,

Andrzejewska³

et al. 2011

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Evaluation of highly reactive mono-methacrylates as reactive diluents for BisGMA-based dental composites

Cited by 35 publications

References 24 publications

Dimethacrylate network formation and polymer property evolution as determined by the selection of monomers and curing conditions

Dimethacrylate network formation and polymer property evolution as determined by the selection of monomers and curing conditions

Toward an enhanced understanding and implementation of photopolymerization reactions

Elastic properties of some selected two-monomer systems as studied by Brillouin spectroscopy

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