Approches cinetiques du mecanisme de la copolymerisation styrene acrylate de butyle

Batch emulsion copolymerizations of n‐butyl acrylate (B) and styrene (S) have been carried out, using either potassium persulfate or “azocarboxy” as initiators and sodium dodecyl sulfate as emulsifier. Particle size vs conversion studies, within a broad range of initiator (0,37 to 3,3.10−3 mol. 1−1)...

Full description

Saved in:
Bibliographic Details
Published in:Die Makromolekulare Chemie 1985-03, Vol.10 (S19851), p.69-86
Main Authors: Guillaume, J. L., Pichot, C., Revillon, A.
Format: Article
Language:English
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:Batch emulsion copolymerizations of n‐butyl acrylate (B) and styrene (S) have been carried out, using either potassium persulfate or “azocarboxy” as initiators and sodium dodecyl sulfate as emulsifier. Particle size vs conversion studies, within a broad range of initiator (0,37 to 3,3.10−3 mol. 1−1) and emulsifier (0,6 to 18.10−3 mol. 1−1) concentrations, 1/1 comonomer ratio and for two solid contents (20 and 50 %), have been investigated through dynamic light scattering and transmission electron microscopy methods. Molecular weight and surface characteristics of the emulsion copolymers were also estimated. From the results, it is suggested that, due to the water solubility of the n‐butyl acrylate, the particle formation in this system follows a homogeneous nucleation mechanism where the limited flocculation step is strongly dependent upon the stabilizing properties of the latex.
ISSN:0025-116X
0025-116X
DOI:10.1002/macp.1985.020101985108