SUSPENSION POLYMERIZATION
作者:
H.G. Yuan,
G. Kalfas,
W.H. Ray,
期刊:
Journal of Macromolecular Science, Part C
(Taylor Available online 1991)
卷期:
Volume 31,
issue 2-3
页码: 215-299
ISSN:1532-1797
年代: 1991
DOI:10.1080/15321799108021924
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
In a typical suspension polymerization system, one or more water-insoluble monomers containing oil-solube initiator(s) are dispersed in the continuous aqueous phase by a combination of strong stirring and the use of small amounts of suspending agents (stabilizers). Suitable conditions of mechanical agitation are maintained while the monomer droplets are slowly converted from a highly mobile liquid state, through a sticky syrup-like dispersion (conversion 20–60%), to hard solid polymer particles (conversion > 70%) [1–3]. The stabilizers hinder the coalescence of the monomer droplets first, and later stabilize tHe polymer beads whose tendency to agglomerate may become critical when the polymerization has advanced to the point where the polymer beads become sticky.
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