Molecular weight development in constant‐rate styrene emulsion polymerization

Grancio, M. R.; Williams, D. J.

doi:10.1002/pol.1970.150081002

Cited by 35 publications

(19 citation statements)

References 20 publications

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“…Clearly, the results of this study support the idea of interfacial polymerization, which has been a matter of ongoing discussion for several decades. [24][25][26][27][28][29][30] …”

Section: Resultsmentioning

confidence: 99%

Sorption of Hydrophobic Organic Compounds by Aqueous Latexes

Tauer

Nozari

Ali

et al. 2005

Macromol. Rapid Commun.

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Summary: Optical absorption measurements are used for the first time to investigate the uptake of pure organic solvents or solutions by latex particles. Sorption into glassy polymer particles is a two‐stage process with distinctly different characteristic times, which reflects that an initial softening of the outer particle layer facilitates further uptake. The sorption of solutions containing highly water‐insoluble compounds allows the preparation of composite nanoparticles, which are hardly accessible by other routes.Photograph of the neat 100 nm latex (right) particles and the particles after dying by sorption with the hydrophobic pigment Sudan IV (left).magnified imagePhotograph of the neat 100 nm latex (right) particles and the particles after dying by sorption with the hydrophobic pigment Sudan IV (left).

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“…Clearly, the results of this study support the idea of interfacial polymerization, which has been a matter of ongoing discussion for several decades. [24][25][26][27][28][29][30] …”

Section: Resultsmentioning

confidence: 99%

Sorption of Hydrophobic Organic Compounds by Aqueous Latexes

Tauer

Nozari

Ali

et al. 2005

Macromol. Rapid Commun.

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“…where P is the conversion in terms of volume of polymer formed per unit volume of water, and A and B are defined by (8) +m is the volume fraction of monomer in the particles and d, and d, are the densities of monomer and polymer, respectively.…”

Section: Gardon T H E~r Y '~ '~mentioning

confidence: 99%

Kinetics of the surfactant‐free emulsion polymerisation of styrene: Application of quantitative theories to the post nucleation stage

Chainey¹,

Hearn²,

Wilkinson³

1987

J. Polym. Sci. A Polym. Chem.

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“…The intercept value (proportional to the molecular weight of the single chain) was determined at zero scattering angle, where the quantity P l ( K ) becomes unity [eq. (2)]. Secondly, the excess scattering intensities owing to molecular segregation were obtained by the differences between the Pl( K ) straight line and the experimental intensities.…”

Section: Discussionmentioning

confidence: 99%

Development of supermolecular structure in polystyrene latexes

Yang

Klein

Sperling

1989

J Polym Sci B Polym Phys

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SynopsisThe development of supermolecular structure in polystyrene latex particles was investigated by small-angle neutron scattering (SANS). Seed latexes of deuterated polystyrene were swollen with an equal mole-% of protonated styrene monomer, equilibrated, and polymerized to complete conversion. The scattering patterns reflect the extent of supermolecular structure development inside the particle. The data were analyzed by separating the Debye single-chain and spherical scattering form factors. The extent of segregation was found to depend on the relative size of the chains compared with that of the particle, going through a maximum at the ratio MJD; of about 0.1, where 0 , represents the weight-average diameter of the latex particle. When the chain dimensions are relatively very small, uniform molecular mixing is obtained. The best model for the segregated system is a graduated core-shell supermolecular structure.tions with the particle-water interphase. It has been reported that ionic chain end-groups are located at the aqueous interphase of the particle, the polymer chains growing inward from the surface?y8 The chain conformation inside such particles will be different from that of the bulk state. Therefore, it is important to understand how the polymer chains of the growing latex particle are arranged. If super-molecular structure or segregation exists within the

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Molecular weight development in constant‐rate styrene emulsion polymerization

Cited by 35 publications

References 20 publications

Sorption of Hydrophobic Organic Compounds by Aqueous Latexes

Sorption of Hydrophobic Organic Compounds by Aqueous Latexes

Kinetics of the surfactant‐free emulsion polymerisation of styrene: Application of quantitative theories to the post nucleation stage

Development of supermolecular structure in polystyrene latexes

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