Phase transition of n-alkane layers adsorbed on mica

被引：26

作者：

Maeda, N ^{[1
]}

Kohonen, MM ^{[1
]}

Christenson, HK ^{[1
]}

机构：

[1] Australian Natl Univ, Res Sch Phys Sci, Dept Appl Math, Canberra, ACT 0200, Australia

来源：

PHYSICAL REVIEW E | 2000年 / 61卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.61.7239

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Thin (thickness h approximate to 3 nm) films of n-octadecane and n-hexadecane adsorbed on mica surfaces from vapor close to their bulk melting points (T-m) have been studied in a surface force apparatus. Using data on the growth rate of capillary condensates between the mica surfaces in contact and measurements of h, we have identified a transition in the structure of the adsorbed films a few degrees above T-m. As T decreases the alkane layers appear to undergo a transition to a more ordered structure, akin to the postulated "surface freezing'' of long-chain liquid n-alkanes.

引用

页码：7239 / 7242

页数：4

共 24 条

[1] THE RATE OF EVAPORATION OF DROPLETS .3. VAPOUR PRESSURES AND RATES OF EVAPORATION OF STRAIGHT-CHAIN PARAFFIN HYDROCARBONS [J].