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Abstract  

In this article, synthesis, characterization, and thermal properties of diacrylic/divinylbenzene copolymers based on the new aromatic tetrafunctional acrylate monomers are presented. The new monomers were generated by treatment of epoxides derived from various aromatic diols: naphthalene-2,3-diol (NAF), biphenyl-4,4′-diol (BIF), bis(4-hydroxyphenyl)methanone (BEP) or 4,4′-thiodiphenol (BES), and epichlorohydrin with acrylic acid. The addition reaction was carried out by a ratio of 0.5 mol of suitable epoxy derivative and 1 mol of acrylic acid in the presence of 0.7 wt% of triethylbenzylammonia chloride (TEBAC) as a catalyst and 0.045 wt% of hydroquinone as a polymerization inhibitor. The chemical structure of the prepared acrylate monomers was confirmed by 13C NMR and GC MS spectra. The emulsion–suspension polymerization of acrylate monomers with divinylbenzene (DVB) in the presence of pore-forming diluents (toluene + decan-1-ol) allowed obtaining microspheres containing pendant functional groups (hydroxyl groups). This process was carried out at constant mol ratio of acrylate monomers: DVB (1:1), and constant volume ratio of pore-forming diluents to monomers (1:1). The different concentrations of toluene in the mixture with decan-1-ol were used for qualifying the effect of the diluents on the microsphere characteristics. The influence of synthesis’s parameters on the properties of copolymer beads, e.g., pore size and surface area by BET method, the surface texture by AFM, swelling behavior in polar and non-polar solvents as well as thermal stability by differential scanning calorimetry (DSC), and thermogravimetric analysis (TG) was studied and discussed.

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present paper describes the studies on the cure reaction of NADIC/PA modified unsaturated (epoxy) polyesters with styrene initiated by BPO or the mixture of BPO and THPA. Moreover, the thermal properties of copolymers based on those prepared polyesters

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Introduction Among widely available polymer-based packing materials, the most popular are non-polar styrene–divinylbenzene (ST-DVB) copolymers. As these materials are highly hydrophobic, they possess rather restriction and

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Introduction Methacrylate copolymers with their excellent physical, chemical, and mechanical properties are widely used in many applications such as raw materials for adhesives, polymeric films, paints, varnishes, and sealants

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cost and high quality [ 7 , 8 ] and this enables polyester production. Thus, only recently, papers dealing with polyesters based on 1,3-PD have been published [ 9 – 14 ]. Block copolymers consist of a most promising class of polymeric materials

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736 744 Tatavarti, A.S., Muller, F.X. & Hoag, S.W. (2008): Evaluation of the deformation behavior of binary systems of methacrylic acid copolymers and

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-dimensional structures or to form encapsulations of water-in-oil (w/o) and oil-in-water (o/w) solutions [ 2 – 7 ]. Using asymmetric Y-shaped triblock copolymers planted on the surface of the spherical particles or the plane material of montmorillonite manocomposites to

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Introduction The chemical structure of the starting polymer, the type of monovinyl monomer and the polymer/monovinyl monomer ratio significantly influences the thermal and mechanical properties of manufactured copolymers. The

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their structure–property relationship. Homo- and copolymers derived from acrylic and methacrylic esters are the materials most used in various industries because of their chemical, rheological, mechanical, electrical, and optical properties [ 1 – 4

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Introduction Amphiphilic block copolymers are characterized by a hydrophobic block linked to a hydrophilic block by a covalent bond. These materials are interesting if applied as incompatible or heterogeneous blend in itself

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