アクリロニトリル・ブタジエンゴムの配位架橋とその物性 Coordination Crosslinking of Acrylonitrile-Butadiene Rubber and its Properties
A novel vulcanization method, vulcanization through metal coordination crosslinking, is developed. In this method copper sulfate (CuSO<sub>4</sub>) particles are simply incorporated into acrylonitrile-butadiene rubber (NBR), and no other vulcanizing agent nor additional additives are involved. It is totally different from traditional covalent or non-covalent vulcanization approaches of rubber. The crosslinking of CuSO<sub>4</sub> particles filled NBR was induced by <i>in situ</i> coordination between nitrogen atoms of nitrile groups (-CN) and copper ions (Cu<sup>2+</sup>) from CuSO<sub>4</sub>. Several factors including heating temperature and time, the contents of CuSO<sub>4</sub> and nitrile groups were investigated in this paper. The generation of a core (CuSO<sub>4</sub> solid particle) -shell (adherent NBR) structure leads to the excellent mechanical properties of the coordination vulcanizates.
日本ゴム協會誌 81(8), 323-328, 2008-08-15
THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN