Abstract
AbstractAn investigation has been made on chemorheological properties of carboxyl terminated polybutadienes (CTPB) with addition of small amounts of ammonium perchlorate (AP). Curing of the polymers has been done with the imine tris‐[1‐(2‐methyl)‐aziridinyl]phosphine oxide (MAPO), and with mixtures of MAPO and epoxides. AP has been dissolved in MAPO before addition to CTPB. Continuous stress relaxation measurements and intermittent measurements of stress have been made at 110°C on CTPB cured with MAPO and at 80, 88, 100, and 110°C on CTPB cured with MAPO and epoxides. The results show that AP increases the rate of scission reactions in all compositions. Mixtures of MAPO and epoxides as curing agents give better properties to CTPB than only MAPO as curing agent.
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