Polymer Micelles II. Micellar Polymerization Behavior of .ALPHA.,.OMEGA.-Divinylbenzyl Poly(ethylene oxide) Macromonomers.

• KAWAGUCHI Seigou

  Departement of Materials Science, Toyohashi University of Technology

• SHIBATA Yutaka

  Departement of Materials Science, Toyohashi University of Technology

• SUDO Takeshi

  Departement of Materials Science, Toyohashi University of Technology

• ITO Koichi

  Departement of Materials Science, Toyohashi University of Technology

Bibliographic Information

Other Title

• 高分子ミセルＩＩ　　α，ω‐ジビニルベンジルポリエチレンオキシドマクロモノマーのミセル重合挙動

Abstract

The properties of aggregates formed by associating polymers in aqueous solution have attracted widespread interest. Such polymers are used as rheology control agents in water-based surface coatings. Telechelic poly (ethylene oxide) (PEO) associating polymers, which have hydrophobic groups at both ends, form the “flower type” aggregates at low concentration. When the concentration exceeds the critical overlapping concentration of the “flowers”, the connectivity through the PEO chains takes place progressively to form the micelles connected by “superbridges” or associated with “superloops” or “dangling ends”. In the present study, amphiphilic telechelic macromonomers (VBPEO-VB-n, n=21, 41, 67) with vinylbenzyl groups (VB) in both ends of a PEO chain were synthesized, and their micellar homopolymerization behavior was studied. It was found that in water VB-PEO-VB-n polymerizes very rapidly as a results of micelle organization to afford the flower-type branched polymers with high degrees of polymerization. However, the polymerization system produced the phase separation and gelation when increasing macromonomer concentration and temperature. The aggregation behavior of the telechelic macromonomers was investigated and is discussed along with the polymerization behavior.

Journal

• KOBUNSHI RONBUNSHU

  KOBUNSHI RONBUNSHU 58 (6), 311-317, 2001

  The Society of Polymer Science, Japan

Keywords

• Telechelic Macromonomer
• Associating Polymers
• Phase Separation
• Micellar Polymerization
• Gelation

Details

• CRID: 1390282681498649344
• NII Article ID: 130003837754
• DOI: 10.1295/koron.58.311
• ISSN: 18815685
• ISSN: 03862186
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed