Simultaneous control of copolymer composition and MWD in emulsion copolymerization

Copolymer composition and molecular‐weight distribution of linear copolymers were controlled simultaneously by maintaining concentrations of the monomers and chain‐transfer agent (CTA) at calculated values. The unreacted amounts of monomers and CTA were inferred by on‐line measurements of the reacti...

Full description

Saved in:
Bibliographic Details
Published in:AIChE journal 2001-07, Vol.47 (7), p.1594-1606
Main Authors: Vicente, M., Leiza, J. R., Asua, J. M.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Industrial polymers. Preparations
Polymer industry, paints, wood
Technology of polymers
Thermoplastics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Copolymer composition and molecular‐weight distribution of linear copolymers were controlled simultaneously by maintaining concentrations of the monomers and chain‐transfer agent (CTA) at calculated values. The unreacted amounts of monomers and CTA were inferred by on‐line measurements of the reaction heat. Styrene/n‐butylacrylate emulsion copolymers of predefined constant compositions and MWDs (narrow and broad monomodal, and bimodal with different polydispersities index in each mode) were obtained by this control approach using tertdodecyl mercaptan as CTA.
ISSN:0001-1541
1547-5905
DOI:10.1002/aic.690470712