Capillary gas chromatography;
Polymers with intrinsic porosity;
Kinetic plot;
Diffusion coefficient;
PERMEATION PROPERTIES;
ADDITION POLY(3-TRIMETHYLSILYLTRICYCLONONENE-7);
SEPARATION MEMBRANES;
TRANSPORT PROPERTIES;
KINETIC PERFORMANCE;
FREE-VOLUME;
PERMEABILITY;
POLY(1-TRIMETHYLSILYL-1-PROPYNE);
POLYNORBORNENES;
REPRESENTATION;
D O I:
10.1016/j.aca.2017.07.022
中图分类号:
O65 [分析化学];
学科分类号:
070302 ;
081704 ;
摘要:
Norbornene polymers with intrinsic porosity were investigated as candidates for polymeric stationary phases in capillary GC. Kinetic and thermodynamic characteristics of the stationary phases were evaluated and turned out that only polymer with vicinal distribution of trimethylsilyl groups (polymer II) provided properties making it potential candidate for application in capillary GC. Columns with stationary phase based on polymer II demonstrated unique selectivity, moderate thermostability and efficiency better than previously studied columns with stationary phase based on poly[(1-trimethylsilyl)-1-propine]. (C) 2017 Elsevier B.V. All rights reserved.