ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
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Polymolecularity of the extremely high molecular mass polymer prepared by emulsion polymerization with a macromolecular initiator forming a heterogeneous phase

L. Šoltés, D. Mikulášová, J. Susla, and I. Hudec

Institute of Experimental Pharmacology, Slovak Academy of Sciences, 881 05 Bratislava

 

Abstract: Extremely high mol. wt. polystyrene  samples [Mw = (8.84-29.4) × 106] were prepd. by emulsion polymn. with a macromol. initiator forming a heterogeneous phase. The dependences of the monomer conversion, Mw, and Mw/Mn on the concns. of the initiator (x1), of the activator (x2), and of the emulsifier (x3) as well as on the polymn. temp. (x4) were tested by a factor expt. of the half-replica type 2(4-1). The true functional dependences of the studied output parameters on x1, x2, and x3 were math. approximated by a rotatable factor expt. At conditions under which the samples attained a local min. of polymolecularity (Mw/Mw,calc = 1.552) a poly(Me methacrylate)   sample was also synthesized.

Full paper in Portable Document Format: 354a533.pdf

 

Chemical Papers 35 (4) 533–541 (1981)

Friday, June 05, 2020

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