Properties of <i>n</i>‐butyl methacrylate copolymer latex films derived from crosslinked latex particles

Ghazaly, H. Mohd.; Daniels, Eric S.; Dimonie, Victoria L.; Klein, A.; Sperling, L. H.; El‐Aasser, M. S.

doi:10.1002/app.11684

Cited by 12 publications

(9 citation statements)

References 15 publications

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“…A series of papers by Ghazaly et al [21][22][23] provides further insight. These authors used miniemulsion polymerization to prepare NBMA copolymers with three crosslinkers, ethylene glycol dimethacrylate (EGDMA) and two polymeric di acrylates with M n of roughly 4000.…”

Section: Film Formation By ''Precoalescence'' Crosslinked Latexesmentioning

confidence: 95%

Investigation of the effect of precoalescence or postcoalescence crosslinking on film formation, properties, and latex morphology

et al. 2008

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Latexes have many product applications including functioning as a binder in coatings. For many years, coatings researchers in industry as well as in academe have been exploring various modes of crosslinking latexes. Quite often, the goal of preparing crosslinked latexes is to upgrade film properties relative to the film properties of uncrosslinked latexes. In the present report, the synthesis and properties of crosslinkable acrylic latexes prepared with either an internal crosslinker (1,3-butylene glycol dimethacrylate)-''precoalescence crosslinking''-or an external crosslinker (adipic dihydrazide)-''postcoalescence crosslinking''-at various levels of crosslinking were studied. For postcoalescence crosslinking, diacetone acrylamide was copolymerized into the latex to provide sites for subsequent reaction with adipic dihydrazide. Fundamental properties of films cast from the two types of latexes were systematically compared. These properties included gel content, dynamic mechanical properties, nano-indenter hardness and modulus, stress-strain properties as well as the characterization of latex morphology by atomic force microscopy (AFM). In addition, some specific end-use properties were determined. This study assesses the effect of type (precoalescence or postcoalescence) and level of crosslinking on the film formation process and the resulting fundamental and end-use properties as well as resulting latex film morphology.

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Section: Film Formation By ''Precoalescence'' Crosslinked Latexesmentioning

confidence: 95%

Investigation of the effect of precoalescence or postcoalescence crosslinking on film formation, properties, and latex morphology

et al. 2008

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“…Th e emulsion technique was adopted by several scientists [56][57][58][59] to synthesize the crosslinked copolymers because, in emulsion polymerization, crosslinkers allow the control of particle morphology and enhance the mechanical properties of latexes used for paints and coatings. Th e kinetic and mechanistic features of emulsion polymerization are strongly refl ected in molecular weight and its distribution, chemical composition, and product properties.…”

Section: Polymerization Techniquesmentioning

confidence: 99%

“…To determine the diff erence in tensile properties and swelling behavior, a series of crosslinking monomers such as macromonomer crosslinker (Mac), EGDMA and aliphatic urethane acrylate were copolymerized with BMA by emulsion technique by El-Aasser et al [59]. Th ey found that copolymers prepared with Mac were tough in comparison with copolymers made with EGDMA.…”

Section: Crosslinking Monomer(s)mentioning

confidence: 99%

Environmentally‐Friendly Acrylates‐Based Polymer Latices

Shukla¹,

Rai

2014

Advanced Materials for Agriculture, Food, and Environmental Safety

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Acrylic copolymers have achieved prime importance in various avenues of industrial application such as adhesive in packaging and construction, binder and stabilizer in textiles, base coat in leather, topcoat in fl oor polish, pigment binder in paper industries, etc. Acrylic resins are generally known to have superior exterior durability and weather resistance compared to other organic binders/fi lm-formers commonly used in surface coatings. Th e emulsion polymerization of acrylic monomers provides a good combination of performance properties required in fi lm formation. Th ese properties depend on the copolymer composition, particle size, molecular weight, glass transition temperature (Tg), morphology of the latex particles, etc.In this chapter, the reaction components and polymerization process conditions that aff ect the inherent characteristics of the polymers are presented. Th ere is a discussion of the incorporation of comonomer, which would lead to an improvement in the fl exibility of fi lms produced along with adhesion, gloss, hardness, solvent resistance, water resistance, etc. Also, there is a recently developed successful approach for achieving balanced properties which involves the copolymerization of fi lm-forming monomers like acrylate and methacrylates with crosslinkable monomers.

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“…In order to determine the difference in tensile properties and swelling behaviour a series of cross-linking monomers such as macromonomer cross-linker (Mac), EGDMA and aliphatic urethane acrylate were co-polymerized with n-butyl methacrylate (BMA) by emulsion technique by El-Aasser and co-workers [9].…”

Section: Literature Reviewmentioning

confidence: 99%

“…The coatings formulated with this emulsion have excellent damping properties and can be used for silencing and shock reducing of mechanical equipment, e.g., air conditioner. El-Aasser and co-workers [9] synthesized a latex film from the copolymer of BMA with a series of cross-linking monomers (i.e., a macromonomer cross-linker (MaC), EGDMA and aliphatic urethane acrylate) by mini-emulsion free-radical co-polymerization. Physical and chemical properties of films obtained form latexes prepared from the emulsion co-polymerization of BMA monomer with cross-linking monomers of different types and molecular weights.…”

Section: Cross-linkersmentioning

confidence: 99%

Co-polymerization of Acrylates

Srivastava

2009

Designed Monomers and Polymers

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Co-polymers of methyl methacrylates (MMAs) are widely used in coatings because of their film-forming capacity, which is due to better bond-forming tendency with various substrates. The adhesion of coating with various substrates such as wood, metal or plastics is an important property for protective, as well as decorative coatings. Co-polymers of MMA with different monomers such as butyl acrylate (BuA), 2-ethyl hexyl acrylate (2-EHA) and hydroxyl ethyl methacrylate (HEMA) are extensively used for coatings on different substrates to improve the roughness, acid scratch and solvent resistances. Co-polymerization of diacrylates/dimethacrylates of glycols with various alkyl esters have been investigated by several scientists. In the synthesis of these materials an understanding of polymerization mechanism and kinetics is important for better control of gel structure. The rate constant depends largely on the physical properties of the system, which in turn, are strong functions of monomer conversion. Cross-link density is one of them, and T g also depends on it, increasing with increasing cross-link density.

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Properties of n‐butyl methacrylate copolymer latex films derived from crosslinked latex particles

Cited by 12 publications

References 15 publications

Investigation of the effect of precoalescence or postcoalescence crosslinking on film formation, properties, and latex morphology

Investigation of the effect of precoalescence or postcoalescence crosslinking on film formation, properties, and latex morphology

Environmentally‐Friendly Acrylates‐Based Polymer Latices

Co-polymerization of Acrylates

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