New polymerisation method for NBR published

ERJ staff report (DS)

London -- A research team from the Karlsruhe Institute of Technology (KIT) supported by Lanxess have published a paper on a new method for polymerising acrylonitrile with butadiene to make nitrile rubber.

In the abstract from the journal, Macromolecular rapid communications (Vol 31, issue 18), the authors say, "For the first time, a solution polymerisation process for the synthesis of nitrile butadiene rubber (NBR) via the use of dithioacetate and trithiocarbonate RAFT agents is described." RAFT, means reversible addition fragmentation chain transfer.

The researchers say they found excellent agreement between the experimentally observed and the theoretically expected molar masses.

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Abstract from Macromolecular rapid communications