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6763887 
Journal Article 
Kinetic study on the poly(methyl methacrylate) seeded soapless emulsion polymerization of styrene .3. Seeds with crosslinking 
Lee, CF; Chiu, WY; , 
1997 
Yes 
Journal of Applied Polymer Science
ISSN: 0021-8995
EISSN: 1097-4628 
JOHN WILEY & SONS INC 
NEW YORK 
425-438 
WOS:A1997XG03400002 
In this work, a seeded soapless emulsion polymerization was carried out with crosslinking (XL) poly(methyl methacrylate) (PMMA) as seeds, styrene as monomer, and potassium persulfate (K2S2O8) as initiator to synthesize the PMMA XL-PS composite latex, which we knew as the latex interpenetrating polymer network (IPN). The morphology of the latex IPN was observed by transmission electron microscopy (TEM). It showed a core-shell structure. The kinetic data from the early stages of the reaction of seeded soapless emulsion polymerization showed that the square root of polymer yield (W-p)(1/2) was proportional to the reaction time. The reaction rate decreased with the increase of crosslinking density of PMMA seeds. The core-shell model proposed in our previous work(1-2) was modified to predict the conversion of polymerization over the entire course of the synthesis of PMMA(XL)-PS composite latex. Our modified core-shell kinetic model fitted well with the experimental data. (C) 1997 John Wiley & Sons, Inc.