[1B14-17] Polymer/Oligomer(3)

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)Japanese

[1B16] New tungsten complexes for the production of dicyclopentadiene resin by reaction injection molding

Toshiyuki Oshiki¹, ○Masumi FUku¹, Kosuke Sano¹, Youushou Nakayama², Shinji Tanaka³ (1. Okayama University, 2. Hiroshima University, 3. National Institute of Advanced Industrial Science and Technology)

Keywords:

polymerization,catalyst,tungsten

We have succeeded in synthesizing well-defined tungsten complexes, which are suitable for the production of dicyclopentadiene molding resin by reaction injection molding. These tungsten complexes were air-stable compounds that could be synthesized in a one-pot reaction on a 30-gram scale in almost quantitative yield with very high purity. A traditional tungsten catalyst for the dicyclopentadiene molding resin, which has been used industrially for approximately 40 years, was also found to be a complex mixture of various types of tungsten species of unknown structure.