Batch Solution Styrene-butadiene random co-polymers (sSBR)
Batch Solution Styrene-butadiene random co-polymers (sSBR)
sSBR technology uses Li-alkyls initiated anionic polymerization in aliphatic or cycloaliphatic solvent solution in the presence of chelating ethers necessary to promote efficiently both the vinyl unit formation and a random distribution of styrene units along the polymer chain.
Batch reactor lets to prepare sSBR with narrow MWD and active chain ends suitable to be coupled or functionalized.
The rapid temperature increasing is effectively controlled optimizing both the randomization of the styrene units and the decreasing of high molecular weight portion.
Process steps & Features
- Monomer and Solvent Purification
- Polymerization
- Blending
- Stripping
- Finishing
- Batch process with narrow MWD
- Easy microstructure and composition control
- Possibility of obtaining different architecture of macrostructure
- Accurate control of the coupling reaction
- Possibility of chain ends functionalization
- Product tailoring depending on customer requirements
For more details
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