Morphology and phase structure of latex particles. Their influence on the properties of latices and films

Eliseeva, V. I.

doi:10.1016/0033-0655(85)80026-1

Cited by 34 publications

(16 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PBA seed latex particles were prepared using the conditions described in Table 1 (column 2). The composite latex particles of poly(butyl acrylate)/poly(styrene‐ co ‐methyl methacrylate) [PBA/poly(St‐ co ‐MMA)] were prepared as described in Table 1 for experiments 1–3. The weight ratio of the second‐stage monomer/seed was kept at 1:1 in each set, and the weight ratios of MMA/St in the second‐stage copolymerization of experiments 1–3 were 30:70, 40:60 and 50:50, respectively.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Morphology of poly(butyl acrylate)/poly(styrene‐co‐methyl methacrylate) latex prepared by starved emulsion polymerization: II. Development of particle morphology

Huo

Liu

Sun

2002

Polymer International

View full text Add to dashboard Cite

Heterogeneous latexes were prepared by a two‐stage seeded emulsion polymerization process under monomer starved conditions at 80 °C using potassium persulfate as the initiator and sodium dodecyl sulfate as the emulsifier. Poly(butyl acrylate) latexes were used as seeds. The second‐stage polymer was poly(styrene‐co‐methyl methacrylate). By varying the amount of methyl methacrylate (MMA) in the second‐stage copolymer, the polarity of the copolymer phase could be controlled. It was found that the latex particles displayed different morphologies depending on the monomer ratio. The amount of MMA had a significant effect on the evolution of morphology. The morphologies were observed by transmission electron microscopy. In addition, the evolution of the particle morphology was predicted by the mathmatical model for cluster migration. The model gave the same trends as the experimental results. © 2002 Society of Chemical Industry

show abstract

Section: Methodsmentioning

confidence: 99%

“…The performances of polymers formed by core‐shell emulsion strongly depend on the morphology of the latex particles 1–3. The control of composite latex particle morphology is important for many latex applications such as adhesives, coatings, plastics and biology engineering.…”

Section: Introductionmentioning

confidence: 99%

Morphology of poly(butyl acrylate)/poly(styrene‐co‐methyl methacrylate) latex prepared by starved emulsion polymerization: II. Development of particle morphology

Huo

Liu

Sun

2002

Polymer International

View full text Add to dashboard Cite

show abstract

“…It was found that the composite latexes were also possessing distinguished physical properties [6–8]. Therefore, the “particle design” as a novel technology in the field of micro-composite science attracted extensive attentions and achieved many important applications in coatings, adhesives, plastics and biomedicine fields [9].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Core-Shell Acrylate Based Latex and Study of Its Reactive Blends

Liu

Fan

Tang

et al. 2008

IJMS

View full text Add to dashboard Cite

Techniques in resin blending are simple and efficient method for improving the properties of polymers, and have been used widely in polymer modification field. However, polymer latex blends such as the combination of latexes, especially the latexes with water-soluble polymers, were rarely reported. Here, we report a core-shell composite latex synthesized using methyl methacrylate (MMA), butyl acrylate (BA), 2-ethylhexyl acrylate (EHA) and glycidyl methacrylate (GMA) as monomers and ammonium persulfate and sodium bisulfite redox system as the initiator. Two stages seeded semi-continuous emulsion polymerization were employed for constructing a core-shell structure with P(MMA-co-BA) component as the core and P(EHA-co-GMA) component as the shell. Results of Transmission Electron Microscopy (TEM) and Dynamics Light Scattering (DLS) tests confirmed that the particles obtained are indeed possessing a desired core-shell structural character. Stable reactive latex blends were prepared by adding the latex with waterborne melamine-formaldehyde resin (MF) or urea-formaldehyde resin (UF). It was found that the glass transition temperature, the mechanical strength and the hygroscopic property of films cast from the latex blends present marked enhancements under higher thermal treatment temperature. It was revealed that the physical properties of chemically reactive latexes with core-shell structure could be altered via the change of crosslinking density both from the addition of crosslinkers and the thermal treatment.

show abstract

“…The investigation of the mechanical properties of such materials becomes then a powerful tool in order to establish the existence of such, rather heterogeneous arrangements, as suggested by the first works done in this direction. [13][14][15] When a highly hydrophilic functional monomer is used, its covering of the surface of latex particles may lead to the formation of a honeycomb structure in the final film, as it has been well-verified by more recent…”

Section: Ntro Du Ctlo Nmentioning

confidence: 99%

Polystyrene (1)/poly(butyl acrylate/amide type functional monomer) (2) two‐stage emulsion polymers. Synthesis and thermomechanical properties of latex films

Hidalgo

Cavaillé

Guillot

et al. 1995

J Polym Sci B Polym Phys

View full text Add to dashboard Cite

SYNOPSISPolystyrene (PS) (l)/Poly (n-butyl acrylate (BA)/amide type functional monomer) (2) structured latex particles were prepared through emulsion polymerization varying the hydrophilicity of the functional monomer employed. The second-stage polymerization kinetics, the size and morphology of latex particles, and the location of the functional groups in the final latexes were studied, in order to relate them to the thermomechanical properties of films cast from these latexes, It has been shown that, as expected, increasing the hydrophobicity leads to a better homogeneity in the copolymer formed during the second-stage polymerization, while the more hydrophilic functional monomer partly homopolymerizes in a separate phase. However, the functionalization by all the monomers used in this work, prevents the PS seed particles to form a continuous skeleton (percolated network). Further heat treatments a t 140°C do not lead to the formation of a continuous PS phase as for pure BA/pure PS two-stage particles. In addition, some thermally induced crosslinking effects are discussed in relation with the functional monomer location within the particles. 0 1995 John Wiley & Sons, Inc. Keywords: core-shell N-methylol acrylamide N-methylol methacrylamide N-isobutoxy methyl acrylamide butyl acrylate polystyrene seed latex emulsion polymerization structured particles particle morphology functional monomers latex films phase arrangement mechanical properties film forming scanning electron microscopy annealing percolation coalescence I NTRO DU CTlO NIn traditional emulsion polymerization, a functional monomer is such that, when used in small proportions (up to 10% based on the total monomer mixture), it provides the base polymer with a chemical group which is capable of modifying the physicochemical properties of the resulting latex (e.g., viscosity, stability), and/or of the polymer which is recovered from that latex (e.g., adhesion, softening

show abstract

Morphology and phase structure of latex particles. Their influence on the properties of latices and films

Cited by 34 publications

References 29 publications

Morphology of poly(butyl acrylate)/poly(styrene‐co‐methyl methacrylate) latex prepared by starved emulsion polymerization: II. Development of particle morphology

Morphology of poly(butyl acrylate)/poly(styrene‐co‐methyl methacrylate) latex prepared by starved emulsion polymerization: II. Development of particle morphology

Synthesis and Characterization of Core-Shell Acrylate Based Latex and Study of Its Reactive Blends

Polystyrene (1)/poly(butyl acrylate/amide type functional monomer) (2) two‐stage emulsion polymers. Synthesis and thermomechanical properties of latex films

Contact Info

Product

Resources

About