Preparation of small-sized carboxylated latexes by emulsion polymerization using alkali-soluble random copolymer

Doug Youn Lee, Jung Hyun Kim

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Alkali-soluble random copolymer (ASR), poly(styrene/α-methylstyrene/ acrylic acid) [Ma: 4,300; acid number: 190], was used as a polymeric emulsifier in the emulsion polymerization of styrene and methyl methacrylate, respectively. ASR containing a large number of carboxyl groups could form aggregates like micelles, and the solubilization ability of the aggregates was dependent on the neutralization degree of ASR. The polystyrene latexes prepared using ASR showed the small particle size (ca. 40 nm) and monodispersed particle size distribution. On the other hand, the particle size distribution of poly(methyl methacrylate) latexes became broader as the neutralization of ASR increased. This could be explained by the effects of water solubility of the monomer and the neutralization degree of ASR on particle formation. Thin layer chromatography/flame ionization detector analysis confirmed that the grafting reaction of polystyrene to ASR occurred during emulsion polymerization. The ζ potentials of final latexes showed high values due to ASR that was adsorbed and grafted on the surface of the latex particle.

Original languageEnglish
Pages (from-to)543-550
Number of pages8
JournalJournal of Applied Polymer Science
Volume69
Issue number3
Publication statusPublished - 1998 Jul 18

Fingerprint

Emulsion polymerization
Latex
Alkalies
Latexes
Copolymers
Styrene
Particle size analysis
Polystyrenes
Thin layer chromatography
Methacrylates
Acids
Micelles
Polymethyl Methacrylate
Polymethyl methacrylates
Particles (particulate matter)
Acrylics
Ionization
Solubility
Monomers
Particle size

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

@article{4736c5dea6544312b8d94a8dd30854d3,
title = "Preparation of small-sized carboxylated latexes by emulsion polymerization using alkali-soluble random copolymer",
abstract = "Alkali-soluble random copolymer (ASR), poly(styrene/α-methylstyrene/ acrylic acid) [Ma: 4,300; acid number: 190], was used as a polymeric emulsifier in the emulsion polymerization of styrene and methyl methacrylate, respectively. ASR containing a large number of carboxyl groups could form aggregates like micelles, and the solubilization ability of the aggregates was dependent on the neutralization degree of ASR. The polystyrene latexes prepared using ASR showed the small particle size (ca. 40 nm) and monodispersed particle size distribution. On the other hand, the particle size distribution of poly(methyl methacrylate) latexes became broader as the neutralization of ASR increased. This could be explained by the effects of water solubility of the monomer and the neutralization degree of ASR on particle formation. Thin layer chromatography/flame ionization detector analysis confirmed that the grafting reaction of polystyrene to ASR occurred during emulsion polymerization. The ζ potentials of final latexes showed high values due to ASR that was adsorbed and grafted on the surface of the latex particle.",
author = "Lee, {Doug Youn} and Kim, {Jung Hyun}",
year = "1998",
month = "7",
day = "18",
language = "English",
volume = "69",
pages = "543--550",
journal = "Journal of Applied Polymer Science",
issn = "0021-8995",
publisher = "John Wiley and Sons Inc.",
number = "3",

}

Preparation of small-sized carboxylated latexes by emulsion polymerization using alkali-soluble random copolymer. / Lee, Doug Youn; Kim, Jung Hyun.

In: Journal of Applied Polymer Science, Vol. 69, No. 3, 18.07.1998, p. 543-550.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Preparation of small-sized carboxylated latexes by emulsion polymerization using alkali-soluble random copolymer

AU - Lee, Doug Youn

AU - Kim, Jung Hyun

PY - 1998/7/18

Y1 - 1998/7/18

N2 - Alkali-soluble random copolymer (ASR), poly(styrene/α-methylstyrene/ acrylic acid) [Ma: 4,300; acid number: 190], was used as a polymeric emulsifier in the emulsion polymerization of styrene and methyl methacrylate, respectively. ASR containing a large number of carboxyl groups could form aggregates like micelles, and the solubilization ability of the aggregates was dependent on the neutralization degree of ASR. The polystyrene latexes prepared using ASR showed the small particle size (ca. 40 nm) and monodispersed particle size distribution. On the other hand, the particle size distribution of poly(methyl methacrylate) latexes became broader as the neutralization of ASR increased. This could be explained by the effects of water solubility of the monomer and the neutralization degree of ASR on particle formation. Thin layer chromatography/flame ionization detector analysis confirmed that the grafting reaction of polystyrene to ASR occurred during emulsion polymerization. The ζ potentials of final latexes showed high values due to ASR that was adsorbed and grafted on the surface of the latex particle.

AB - Alkali-soluble random copolymer (ASR), poly(styrene/α-methylstyrene/ acrylic acid) [Ma: 4,300; acid number: 190], was used as a polymeric emulsifier in the emulsion polymerization of styrene and methyl methacrylate, respectively. ASR containing a large number of carboxyl groups could form aggregates like micelles, and the solubilization ability of the aggregates was dependent on the neutralization degree of ASR. The polystyrene latexes prepared using ASR showed the small particle size (ca. 40 nm) and monodispersed particle size distribution. On the other hand, the particle size distribution of poly(methyl methacrylate) latexes became broader as the neutralization of ASR increased. This could be explained by the effects of water solubility of the monomer and the neutralization degree of ASR on particle formation. Thin layer chromatography/flame ionization detector analysis confirmed that the grafting reaction of polystyrene to ASR occurred during emulsion polymerization. The ζ potentials of final latexes showed high values due to ASR that was adsorbed and grafted on the surface of the latex particle.

UR - http://www.scopus.com/inward/record.url?scp=0032122040&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032122040&partnerID=8YFLogxK

M3 - Article

VL - 69

SP - 543

EP - 550

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

SN - 0021-8995

IS - 3

ER -