Use of a new methacrylic monomer, 4,4′‐di(2‐hydroxy‐3‐methacryloyloxypropoxy)benzophenone, in the synthesis of porous microspheres

Abstract

A new aromatic, tetrafunctional methacrylate monomer, 4,4′‐di(2‐hydroxy‐3‐methacryloyloxypropoxy)benzophenone, and its application to the synthesis of porous microspheres are presented. This new monomer was copolymerized with divinylbenzene in the presence of pore‐forming diluents. The properties of the obtained highly crosslinked microspheres were investigated as column packing for high‐performance liquid chromatography. Their porous structures in both dry and wet states were studied and compared with those of poly(divinylbenzene) and the less crosslinked copolymer of 2,3‐epoxypropyl methacrylate and divinylbenzene. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 7014–7026, 2006

Preparation and characterization of porous crosslinked microspheres of new aromatic methacrylates

“…The 13 C NMR spectra of the compounds in deuterated chloroform were made using the same apparatus. Cross-polarisation magic angle spinning (CP-MAS 13 C NMR) measurements were completed on the same spectrometer at resonance frequency of 75.5 MHz. The number of scans was 2,048, and the spin rate was 7,300 Hz.…”

“…In the unreacted methacrylate group, the carbonyl bond is conjugated with a C=C double one, which should shift the 13 C carbonyl resonance about 10 ppm upfield compared to the reacted units [31].…”

“…Exclusion chromatography experiments were carried out in THF using as pore-size probes, toluene, alkylphenones, phthalates and polystyrene standards with molecular weights ranging from 580 to 275,000 [25,26].…”

“…Gawdzik et al [12][13][14][15] proposed to use modified suspension polymerisation to produce permanently porous microspheres and called this method suspension-emulsion polymerisation. In contrast to suspension polymerisation, in this method the stabiliser of high molecular weight was replaced with a surfactant typical of emulsion polymerisation.…”

Synthesis of new copolymers 4,4’-sulfinylbisphenol derivative with N-vinyl-2-pyrrolidone - photopolymerization and thermo-mechanical studies

“…In our previous articles, new polar tetrafunctional methacrylate monomers and their applications in the synthesis of porous microspheres were described [22][23][24][25][26]. Current research is aimed at obtaining new copolymers in the form of UV-curable compositions and complete studies of them.…”