2007年5月21日 · Differential scanning calorimeter (DSC; Perkin–Elmer DSC-7, UK) was used to observe the glass transition temperature of the poly(GMA) and poly(GMA-co-DVB) particles. The samples were heated up to 250 °C at a heating rate of 20 °C/min under a nitrogen atmosphere and quench cooled at a maximum cooling rate, and then reheated in a second time.

The series of highly crosslinked, hydrophilic stable spherical microspheres based on the new aromatic tetrafunctional methacrylate monomers and divinylbenzene (DVB) were prepared by...

2021年4月20日 · The thermal properties of pure polymer-silane hybrids and the materials loaded with organic adsorbates were investigated using TG, DTG and DSC techniques. In Figure 9, the TG, DTG and DSC curves measured for the synthesized DVB-TEVS materials are presented. One can state that they show similar thermal behaviour with several stages of the ...

Styrene-based resins used for the preparation of ion exchange resins and polymer supports are also obtained by oil-in-water (O/W) method of styrene (St) and divinylbenzene (DVB) (and a functional monomer) [29, 30].

2018年3月10日 · The curing kinetics of Ba and Ba/SP(St-DVB) systems was investigated by non-isothermal DSC, and the results revealed that irrespective of the reaction and heating rates, each DSC curve exhibited only one single exothermic peak, and the exothermal peak shifted to high temperature with increasing heating rates.

2010年12月1日 · Using DVB, three new porous copolymers in the form of microspheres were prepared, characterized and used as adsorbents for phenol and its chlorinated derivatives. As the monomers: 4,4′-bis (maleimidodiphenyl)methane (BM), 2,3-bis (2-hydroxy-3-methylacryloyloxy-propoxy)naphthalene (2,3-NAF) and 2,3-epoxypropyl methacrylate (GLY) were used.

2011年5月1日 · The series of highly crosslinked, hydrophilic stable spherical microspheres based on the new aromatic tetrafunctional methacrylate monomers and divinylbenzene (DVB) were prepared by...

2010年12月8日 · In this article, characterization and thermal properties of highly crosslinked, hydrophilic stable spherical microspheres based on the new aromatic tetrafunctional methacrylate monomers and divinylbenzene (DVB) prepared by emulsion–suspension polymerization in the presence of pore-forming diluents (toluene/decan-1-ol) were presented.

2013年3月26日 · Divinylbenzene (DVB), Merck (Darmstadt, Germany), and 1-vinyl-2-pyrrolidone (VP), Fluka (Buchs, Switerland), were washed with 5 % aqueous sodium hydroxide in order to remove inhibitors. Poly (vinyl alcohol) and α,α′-azoisobisbutyronitrile from Fluka (Buchs, Switerland) were used without purification.

In every DSC test a mass of 20 μg of DVB at room temperature was processed in aluminium pressured pan. The result of the first scanning test on fresh DVB was a detected onset temperature of...