Safety and Quality Aspects of Acrylic Monomers

Hartwig, A.; Brand, R. H.; Pfeifer, C.; Dürr, Nadine; Drochner, Alfons; Vogel, Herbert

doi:10.1002/masy.201000077

Cited by 7 publications

(15 citation statements)

References 12 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Acrylic acid (AA, Merck, ≥99%, anhydrous, stabilized with hydroquinone monomethyl ether, CASRN: 79‐10‐7) was used as received or purified by distillation; other than an initial inhibition period, there was no difference in monomer conversion profiles obtained in batch reactions using the inhibited monomer. The presence of the impurity diacrylic acid (2‐(acryloyloxy) acetic acid), formed by a 1,4‐Michael addition reaction between two monomer molecules, limits the long‐term storage stability of AA . Proton NMR was used to ensure that diacrylic acid concentration remained below 1 mol%.…”

Section: Methodsmentioning

confidence: 99%

Modeling Acrylic Acid Radical Polymerization in Aqueous Solution

Wittenberg

Preusser

Kattner

et al. 2015

Macro Reaction Engineering

118

View full text Add to dashboard Cite

93Front Cover: The unique rheological properties of LDPE are a result of its MWD, which is determined by a complex free-radical kinetic mechanism. The paper illustrated in the cover analyzes some factors that defi ne the MWD in multizone autoclave reactors by using plant data, simulation and mechanistic arguments. Further details can be found in the article by Enrique Saldívar-Guerra and co-workers on page 123.The complexities of aqueous-phase polymerization of non-ionized acrylic acid are captured in a model that considers the formation of midchain radicals, the infl uence of radical chain length on termination kinetics, and the infl uence of monomer concentration on propagation kinetics. The model is verifi ed against monomer conversion profi les, polymer branching levels, and molar mass distributions collected over a range of experimental conditions.

show abstract

Section: Methodsmentioning

confidence: 99%

Modeling Acrylic Acid Radical Polymerization in Aqueous Solution

Wittenberg

Preusser

Kattner

et al. 2015

Macro Reaction Engineering

118

View full text Add to dashboard Cite

show abstract

“…These conclusions were confirmed with 2D NMR. DiAA is formed very slowly over time by a Michael addition reaction that is promoted with increasing temperature and humidity . The fraction of DiAA in the acrylic acid can be calculated according to the following equation:

% D i A A = \frac{A r e a D i A A}{\frac{A r e a D i A A}{2} + A r e a A A} \times 100

…”

Section: Experimental Partmentioning

confidence: 99%

An In‐Situ NMR Study of Radical Copolymerization Kinetics of Acrylamide and Non‐Ionized Acrylic Acid in Aqueous Solution

Preusser

Hutchinson

2013

Macromolecular Symposia

View full text Add to dashboard Cite

Summary: An in-situ NMR technique has been developed to study the aqueous phase copolymerization of non-ionized acrylic acid (AA) and acrylamide (AM) under near-isothermal conditions at much higher monomer contents than previously reported in the literature. The composition data obtained over the entire conversion range provides a precise estimate of monomer reactivity ratios not available from low conversion data. The set of experiments, with initial monomer content in aqueous solution varied between 5 and 40%, were well-fit over the complete conversion range by r AA ¼ 1.24 AE 0.02, and r AM ¼ 0.55 AE 0.01. It was found that the rate of monomer conversion increases with increasing monomer concentration, a trend contrary to the known decrease in the AA and AM chain-end propagation rate coefficients.

show abstract

“…Acrylate substrates in particular must be carefully stored cold and away from light to prevent unwanted polymerization. 152 …”

Section: Chemical Conjugationmentioning

confidence: 99%

Achieving Controlled Biomolecule–Biomaterial Conjugation

2018

View full text Add to dashboard Cite

The conjugation of biomolecules can impart materials with the bioactivity necessary to modulate specific cell behaviors. While the biological roles of particular polypeptide, oligonucleotide, and glycan structures have been extensively reviewed, along with the influence of attachment on material structure and function, the key role played by the conjugation strategy in determining activity is often overlooked. In this review, we focus on the chemistry of biomolecule conjugation and provide a comprehensive overview of the key strategies for achieving controlled biomaterial functionalization. No universal method exists to provide optimal attachment, and here we will discuss both the relative advantages and disadvantages of each technique. In doing so, we highlight the importance of carefully considering the impact and suitability of a particular technique during biomaterial design.

show abstract

Safety and Quality Aspects of Acrylic Monomers

Cited by 7 publications

References 12 publications

Modeling Acrylic Acid Radical Polymerization in Aqueous Solution

Modeling Acrylic Acid Radical Polymerization in Aqueous Solution

An In‐Situ NMR Study of Radical Copolymerization Kinetics of Acrylamide and Non‐Ionized Acrylic Acid in Aqueous Solution

Achieving Controlled Biomolecule–Biomaterial Conjugation

Contact Info

Product

Resources

About