ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

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 [M_w = (8.84-29.4) × 10⁶] were prepd. by emulsion polymn. with a macromol. initiator forming a heterogeneous phase. The dependences of the monomer conversion, M_w, and M_w/M_n 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 (M_w/M_w,_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)