1 Jul 2020
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London - In a project at Lion Elastomers, automatic continuous online monitoring was used to continuously measure the anionic polymerisation of styrene butadiene rubber (SBR), according to a Fluence Analytics paper.
The 20-litre scale process was tracked, along with weight average molecular weight (Mw), and low and high shear reduced viscosities to determine real-time reaction kinetics via conversion rates.
After the initial reaction, the effects of a coupling agent were directly monitored: showing a doubling in Mw over a short period of time and increases in viscosity.
“The signatures of the various quantities versus time will be useful to establish the range of reaction trajectories that will produce a desired product,” stated the researchers.
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