Acrylates monofunctional

Acrylate Monomer/NVP. To observe the interaction between monomers, we compared the behavior of two monomer mixtures, I and T. These mixtures contrast the interaction of NVP and a monofunctional acrylate (IBOA), which should yield to linear polymerization, with a trifunctional monomer (TMPTA) which results in a crosslinked network. 

Monofunctional acrylates give a less reactive coating and are less desirable ingredients because of their volatility, odor and skin-irritating effects. Currently, the following bifunctional and polyfunctional acrylates are used in industrial applications (acronyms in parentheses) ... 

As these reactive oligomers have a high viscosity, they are diluted with a multifunctional and if necessary a monofunctional acrylate monomer. The acrylate monomers reduce the viscosity of the mixture for easier application on substrates. The multifunctional acrylate monomers increase the crosslink density the monofunctional monomers decrease it. 

Diluent A is a monofunctional acrylate containing a urethane group. 

Frontal free-radical polymerization is fairly well understood. Studies on the velocity dependence on temperature and initiator concentration have been performed (7,11,23), Frontal polymerization in solution was performed (70), and initiators that do not produce gas were developed (24), The velocity can be affected by the initiator type and concentration but is on the order of a cm/min for monofunctional acrylates and as high as 20 cm/min for multifunctional acrylates (24). 

Figure 1. Mechanism for the formation of 1,6-oxybismethacrylates from the base-catalyzed insertion/condensation reaction of monofunctional acrylates and formaldehyde.

Polyvinyl alkyl ether, monofunctional acrylate monomer, photoinitiator blends cured by UV. ... 

International Coatings Monofunctional acrylate ester, tackifying resin, elastomer, initiator cured by UV or other radiation Properties given. 

Acrylate and methacrylate are used for monomers of photopolymerization. Monofunctional acrylates are shown in Tables 1.3 and 1.4.2-Ethylhexylacrylate (EHA) is polymerized as follows ... 

The simplest UV-curable ink or coating formulations may consist of only three components. In practice, however, a typical industrial formulation contains a much greater number of ingredients. The three essential components are (1) a UV-reactive prepolymer which provides the bulk of the desired properties, (2) a diluent system composed of multifunctional acrylate esters (and at times monofunctional acrylic esters) and (3) a photoinitiator system. The most commonly used multifunctional acrylate in an UV-curable ink or coating formulation is an acrylic acid ester of either pentaerythritol (PETA), trimethyl-olpropane (TMPTA) or hexanediol (HDDA). 

One of the earliest and most enduring demands voiced by users of anaerobic adhesives was for a graded product series of different viscosities and ultimate strengths. Modification of these physical properties is readily accomplished with the aid of thickeners or reactive diluents, which raise or lower the viscosity of the organic resin base, and nonreactive plasticizers, which lower the bond strength of the fully cured product. Examples of commonly used thickeners are polyester resins, polystyrene and poly alkyl acrylates and their copolymers, and polybis-phenol A maleate. The principal reactive diluents are low molecular weight monofunctional acrylates. Traditional plasticizers include poly (ethylene glycol) octanoates. 

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