Problems in the size exclusion chromatography of poly(N-isopropylacrylamide) on styragel columns
- 作者: Estrin Y.1, Perepelitsina E.1, Grishchuk A.1
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隶属关系:
- Institute of Problems of Chemical Physics
- 期: 卷 90, 编号 7 (2016)
- 页面: 1474-1478
- 栏目: Physical Chemistry of Surface Phenomena. Chromatography
- URL: https://journals.rcsi.science/0036-0244/article/view/168509
- DOI: https://doi.org/10.1134/S0036024416070086
- ID: 168509
如何引用文章
详细
The molecular weights of poly(N-isopropylacrylamide) (PNIPA), calculated according to polystyrene calibration standards upon the elution of THF on styragel columns, appear to be much lower than their actual values determined using independent approaches. This is likely due to interactions between the nitrogen-containing units of PNIPA polymer chains and the sorbent, so the polymer is eluted in the mode intermediate between exclusion and critical. An effective exclusion mode during the elution of PNIPA on a styragel column can be achieved by using an eluent more polar than tetrahydrofuran (particularly, 1-methylpyrrolidone).
作者简介
Ya. Estrin
Institute of Problems of Chemical Physics
编辑信件的主要联系方式.
Email: estriny@icp.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
E. Perepelitsina
Institute of Problems of Chemical Physics
Email: estriny@icp.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
A. Grishchuk
Institute of Problems of Chemical Physics
Email: estriny@icp.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432