Bulk polymerization

Course of bulk polymerization of redox-initiated methyl methacrylate with clearly recognizable Trommsdorff effect

The bulk polymerization , even by mass or bulk polymerization called, is a polymerization of monomers without an additional solvent . Only one initiator is usually added to the monomer, as a result of which a very pure polymer is obtained without purification or separation (with complete conversion). The transfer of in this exothermic reaction formed reaction heat is problematic under certain circumstances. The Trommsdorff effect can occur due to the increasing viscosity during the reaction .

There are two different variants of bulk polymerization. If the polymer dissolves in the monomer, there is bulk solution polymerization . In contrast, the polymer precipitates during substance precipitation polymerization.

literature

• Manfred Dieter Lechner, Klaus Gehrke, Eckhard H. Nordmeier: 3.4.3 . In: Makromolekulare Chemie , 4th edition, Birkhäuser, 2010, ISBN 978-3-7643-8891-1 , pp. 161-164.
• Gottfried W. Ehrenstein: Polymer materials . Hanser Verlag, 1999, ISBN 978-3-446-21161-2 , p. 41.