New Monolithic Capillary Columns with Well-Defined Macropores Based on Poly(styrene-co-divinylbenzene)

被引：35

作者：

Hasegawa, George ^{[1
]}

Kanamori, Kazuyoshi ^{[1
]}

Ishizuka, Norio ^{[2
]}

Nakanishi, Kazuki ^{[1
]}

机构：

[1] Kyoto Univ, Dept Chem, Grad Sch Sci, Sakyo Ku, Kyoto 6068502, Japan

[2] Emaus Kyoto Inc, Ukyo Ku, Kyoto 6150055, Japan

来源：

ACS APPLIED MATERIALS & INTERFACES | 2012年 / 4卷 / 05期

关键词：

polymer monoliths; controlled/living radical polymerization; co-continuous macroporous structure; HPLC separation media; capillary columns; separation of small molecules; POROUS POLYMER MONOLITHS; PERFORMANCE LIQUID-CHROMATOGRAPHY; OPENING-METATHESIS POLYMERIZATION; TRANSFER RADICAL POLYMERIZATION; STATIONARY PHASES; SEPARATION; HYPERCROSSLINKING; EFFICIENT;

D O I：

10.1021/am300552q

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Macroporous polymer monoliths based on poly(styrene-co-divinylbenzene) with varied styrene/divinylbenzene ratios have been prepared by organotellurium-mediated living radical polymerization. The well-defined cocontinuous macroporous structure can be obtained by polymerization-induced spinodal decomposition, and the pore structures are controlled by adjusting the starting composition. The separation efficiency of small molecules (alkylbenzenes) in the obtained monoliths has been evaluated in the capillary format by high-performance liquid chromatography (HPLC) under the isocratic reversed-phase mode. Baseline separations of these molecules with a low pressure drop (similar to 2 MPa) have been achieved because of the well-defined macropores and to the less-heterogeneous cross-linked networks.

引用

页码：2343 / 2347

页数：5

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