期刊
JOURNAL OF CHROMATOGRAPHY A
卷 966, 期 1-2, 页码 25-40出版社
ELSEVIER
DOI: 10.1016/S0021-9673(02)00705-7
关键词
gradient elution; critical point of adsorption; chemical composition distribution; copolymers; polymers
Theoretical and experimental analysis of interaction polymer chromatography revealed a new mode of polymer separation: gradient elution at the critical point of adsorption (the eluent composition where size-exclusion and adsorption interactions completely compensate each other). This mode allows for molecular-mass-independent separation by chemical composition and/or other structural differences between macromolecules. The isocratic and gradient elution of narrow polydispersity polystyrenes and poly(methylmethacrylates) on reversed- and normal-phase columns confirmed all basic theoretical assumptions and conclusions. The gradient separation of poly(alkylmethacrylate) and poly(alkylacrylate) blends, as well as styrene-butadiene copolymers provided further experimental verification of the theory. (C) 2002 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据