Reaction engineering studies on the copolymerization of styrene with maleic anhydride in a loop reactor

The heat-induced, solvent-free copolymn. of styrene (I) with maleic anhydride (II) was studied on a pilot scale in a loop reactor coupled to a tube reactor. Under conditions required for the manuf. of alternating copolymers (stoichiometric ratio of I to II or excess II) rapid reaction kinetics were obsd. resulting from the Trommsdorff effect, which, with the high reaction enthalpy of .apprx.80 kJ/mol. led to thermal instabilities esp. during start-up and at low recirculating rates. This was overcome by effective reactor control. The manuf. of products with low contents of II was also demonstrated possible by employing low II concns. (4-16%) in the monomer mixt. and rapid and efficient reactant mixing. [on SciFinder (R)]


Published in:
Chemie Ingenieur Technik, 66, 4, 513-16
Year:
1994
Keywords:
Note:
CAN 121:135326, 37-3, Plastics Manufacture and Processing, Inst. Genie Chim.,Eidg. Tech. Hochsch. Lausanne,Lausanne,Switz., Journal, 0009-286X, written in German., 9011-13-6P (Maleic anhydride-styrene copolymer) Role: PREP (Preparation) (manuf. of, in loop reactor, chem. engineering study of)
Laboratories:




 Record created 2006-04-18, last modified 2018-03-18


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