Butyl methacrylate based monoliths with different cross‐linking agents using DMF‐aqueous buffer as porogen

Abstract

A simple porogen containing only DMF and aqueous buffer was used for synthesis of monolithic stationary media for CEC). Butyl methacrylate (BMA)-based capillary monoliths were obtained using proposed porogen together with acrylic/methacrylic cross-linking agents with different alkyl chain lengths. For this purpose, ethylene glycol dimethacrylate, butanediol dimethacrylate and hexanediol diacrylate (HDDA) were used. The monoliths with better electrochromatographic separation performance were obtained when the acrylic cross-linking agent with the longest alkyl chain length (i.e. HDDA) was used with the proposed porogen. The electrochromatographic separation of alkylbenzenes, phenols and benzoic acids were sucessfully performed in CEC particularly using poly(BMA-co-HDDA) monolithic stationary phase with the column efficiency up to 270 000 plates/m.

Cleaning of Wastewater Using Crosslinked Poly(Acrylamide-co-Acrylic Acid) Hydrogels: Analysis of Rotatable Bonds, Binding Energy and Hydrogen Bonding

“…In the literature, some authors report on poly(AM- co -AA) crosslinked with NMBAM [ 42 , 43 , 44 , 45 , 46 ]. In this work, AM and AA were copolymerized and crosslinked with HDDA since it contributes to the high level of conversion of acrylic double bonds [ 47 , 48 ]. Under the UV-visible light exposure in the presence of a suitable photoinitiator (Darocur 1173), a chemically crosslinked three-dimensional copolymer was successfully obtained.…”

Preparation of a porous functional polymer and its application in the separation of small molecules in conjunction with HPLC

“…As shown by Beytepe et al, HDDA-based monoliths were successfully used in CEC. 14 In order to obtain better accuracy and reproducibility, and especially the high throughout of the analysis, a poly(HDDA-co-BMA-co-EDMA) monolith was prepared via a simple one-step polymerization and was used successfully in HPLC in this work.…”

Preparation and characterization of octadecyl acrylate monoliths for capillary electrochromatography by photochemical, thermal, and chemical initiation†

“…These monoliths are usually prepared by free‐radical polymerization of a mixture containing one or more functional monomers, including a crosslinker, a porogenic solvent, and an initiator. Heat and UV irradiation are the most common ways of initiating polymerization. Photopolymerization provides several advantages over thermal initiation such as fast preparation, higher bed uniformity, and easy selection of polymerization regions by using masks, which is particularly important in relation to the manufacturing of microfluidic chips .…”