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Reptation Aggregation of Liquid Silicon Oils Modified by Ar Plasmas
Author(s) -
Ye Chao,
Deng Yanhong,
Ge Shuibing,
Ning Zhaoyuan
Publication year - 2013
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201200172
Subject(s) - reptation , silicone oil , viscosity , diffusion , materials science , polymer , silicon , ion , plasma , silicone , analytical chemistry (journal) , polymer chemistry , thermodynamics , chemistry , composite material , organic chemistry , physics , quantum mechanics , metallurgy
The aggregation behavior of silicone oil polymers exposed to Ar plasmas was investigated. A reptation aggregation related to the viscosity of silicone oil was found. The viscosity dependence η ∼ L b on the reptation length L with b = 3.37 in the viscous coefficient range of 20 and 500 mm 2 · s −1 was obtained. The formation of reptation aggregation is thought to relate to the gradient viscosity in the vertical direction due to crosslinking and formation of SiO network at the surfaces of silicone oils induced by energetic ions bombardment and the vacuum‐ultraviolet irradiation, as well as the temperature gradient in vertical direction induced by energetic ions bombardment.