Abstract
A method based on high-performance liquid chromatography (HPLC) method has been developed for the characterization of the compositional distribution of brominated poly(isobutylene-co-4-methylstyrene) and poly(isobutylene-co- isoprene). The desired separations in normal-phase Chromatographic mode could only be achieved by using columns packed with specifically developed 10 and 3 μm porous monodisperse poly(2,3-dihydroxypropyl methacrylate-co-ethylene dimethacrylate) beads that have a homogeneous coverage of aliphatic hydroxyl groups. Linear gradients of tetrahydrofuran in hexane and dichloromethane in heptane were used respectively as the mobile phases for the selective elution of brominated poly(isobutylene-co-4-methylstyrenes) and brominated poly(isobutylene-to-isoprenes). In-column solvothermal treatment of the stationary phase further improved both selectivity and retention and enabled the easy detection and detailed quantification of differences in bromine content well below 1 mol %.
Original language | English (US) |
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Pages (from-to) | 78-89 |
Number of pages | 12 |
Journal | Rubber Chemistry and Technology |
Volume | 77 |
Issue number | 1 |
DOIs | |
State | Published - 2004 |
Externally published | Yes |
ASJC Scopus subject areas
- Polymers and Plastics
- Materials Chemistry