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Synthesis and Properties of Hydrogenated Ring-Opening Polymers of Endo/Exo-Dicyclopentadiene

1995; Springer Nature; Volume: 27; Issue: 12 Linguagem: Inglês

10.1295/polymj.27.1167

1349-0540

Junji Kodemura, Tadao Natsuume,

Model-Driven Software Engineering Techniques

Cyclic olefin polymers were obtained by ring-opening metathesis polymerization (ROMP) of endo- and exo-dicyclopentadiene (DCP) followed by the complete hydorogenation of double bonds. The cyclic olefin polymers are amorphous and transparent. Cyclic olefin polymers of endo- and exo-DCP have glass transition temperatures (Tg) of 97 and 66°C, respectively. The cyclic olefin polymer of endo-DCP shows extremely low water vapor permeability of 0.09 g·mm m−2. 24 h which is lower than those of crystalline polyolefins such as polyethylene (PE) or polypropylene (PP).