Two-stage stabilizer addition protocol as a means to reduce the size and improve the uniformity of polymer beads in suspension polymerization

Shahriar Sajjadi-Emami, Fatemeh Jahanzad

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A 2-stage stabiliser addition protocol is suggested for reducing the size and improving the uniformity of polymer beads resulting from conventional suspension polymerisation. The stabiliser load was divided into an initial charge and a secondary addition. The use of a low concentration of stabilizer in the initial charge served to assist drop rupture while avoiding significant reduction in drop size and production of too many satellite droplets. The secondary addition time of stabiliser occurred just before the onset of the growth stage when drops were vulnerable to coalescence but were robust against break up due to their high viscosity. The secondary addition of stabiliser served to provide stability to monomer drops during the growth stage and as a result the drops underwent limited coalescence. This resulted in the formation of smaller and more uniform polymer beads in comparison to beads obtained by conventional suspension polymerisation at the same overall concentration of stabiliser.
Original languageEnglish
Article number45671
Pages (from-to)1-7
Number of pages7
JournalJOURNAL OF APPLIED POLYMER SCIENCE
Publication statusPublished - 2018

Fingerprint

Dive into the research topics of 'Two-stage stabilizer addition protocol as a means to reduce the size and improve the uniformity of polymer beads in suspension polymerization'. Together they form a unique fingerprint.

Cite this