Synthesis of poly (p‐methylstyrene) ‐graft‐poly (oxyethylene) and application as a polymeric surfactant in emulsion polymerization
作者:
Irja Piirma,
James R. Lenzotti,
期刊:
British Polymer Journal
(WILEY Available online 1989)
卷期:
Volume 21,
issue 1
页码: 45-51
ISSN:0007-1641
年代: 1989
DOI:10.1002/pi.4980210108
出版商: John Wiley&Sons, Ltd
关键词: emulsion polymerization;amphiphatic compound;polymeric surfactant;polyoxyethylene grafts
数据来源: WILEY
摘要:
AbstractPoly(p‐methylstyrene)‐graft‐poly(oxyethylene) copolymers were prepared fromp‐methylstyrene and æ‐hydroxy‐ω‐methyl‐poly(oxyethylene) using a ‘grafting on to’ technique. A total of 10 copolymers were synthesized varying in the hydrophobic back bone chain lengths, hydrophilic branch lengths and frequency of branches. The stabilizing efficiency of these amphipathic copolymers was studied in the emulsion polymerization of styrene. Using the number, size and size distribution of the particles as the criterion of stability, it was found that the polyoxyethylene (PEO) chain length is not as crucial for stability as the availability of the backbone for anchoring. A change in the backbone chain length (from M̄n= 1000 to 24000) with the same percent PEO had no effect on the outcome of the reaction: the latices stabilized to the same number of part
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