Exploratory study on the behaviour of glass/PDCPD composites

© 2015 International Committee on Composite Materials. All rights reserved. The potential of the tough thermoset polydicyclopentadiene (PDCPD) as a matrix for composite materials was explored in this study. A range of properties was compared for a composite with a PDCPD formulation matrix and an equivalent epoxy composite. The PDCPD composite showed higher interlaminar fracture toughness and reduced damage development during tensile loading. Improved fatigue life and higher compressive strength were observed. Impact damage was greatly reduced and substantial improvement in compression after impact strength was noted. Based on the obtained results, the PDCPD formulation used in this work can be considered an interesting alternative for brittle thermosets.status: publishe

Exploring new synthetic strategies in the development of a chemically activated Ru-based olefin metathesis catalyst

A

Olefin metathesis mediated by Schiff base Ru-alkylidenes: Ru-alkylidenes bearing unsymmetrical NHC ligands

The classic Grubbs second-generation complex 2 was modified through 1. The introduction of a bidentate Schiff base ligand 2. Changes in the amino side groups of the NHC ligand Representative olefin metathesis test reactions show the effects induced by the ligand modifications and demonstrate some interesting new properties of the described catalysts. catalysts