Critical point wetting from binary polymer mixtures

doi:10.1002/bbpc.19940980316

Critical point wetting from binary polymer mixtures

2010-05-08

0

PRE

AI

DOI：10.1002/bbpc.19940980316

原文链接

原文求助

摘要

En 中文

AbstractCritical point wetting generally occurs whenever a binary fluid system in the demixed region of phase space, in contact with a surface, approaches its critical temperature. For the case of polymeric mixtures the segmental interaction parameter, which determines the interfacial tension between the coexisting phases, can be very low even far from the critical point. This suggests that polymer blends should be likely candidates to exhibit complete wetting even far below the critical point. Using nuclear reaction analysis, we have now observed such complete wetting behaviour from two different classes of binary polymer mixtures. These are mixtures of statistical olefinic copolymers, with slightly different chemical microstructures; and an isotopic pair of deuterated and protonated polymers. In the former case we have been able to follow the growth with time t of the wetting layer thickness l; our results indicate l ∼ log t.

Critical point wetting from binary polymer mixtures

摘要

AI总结

期刊

机构

引用论文