Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 111, Issue 2, Pages 1553-1560Publisher
SPRINGER
DOI: 10.1007/s10973-012-2483-3
Keywords
Block copolymers; Mechanical properties; Photopolymerization; Thermogravimetric analysis; DMA
Funding
- MCS University Deputy Rector MNiSW [BW-03-1109-0410]
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Structure and characterization of the sulfur-containing monomers bis[4(2-hydroxy-3-methacryloyloxypropoxy)phenyl]sulfide (S center dot DM), bis[4(2-hydroxy-3-methacryloyloxypropoxy)phenyl]sulfinyl (SO center dot DM), bis[4(2-hydroxy-3-methacryloyloxypropoxy)phenyl]sulfonyl (SO2 center dot DM), and their photopolymerization with N-vinyl-2-pyrrolidone (NVP) are presented. The monomers were obtained in the reaction of derivatives of aromatic diols with 2-(chloromethyl)oxirane in the two-phase liquid/liquid system, including organic and aqueous phases. Next, esterification of the obtained diglycidyl ether was carried out with the use of methacrylic acid. Photopolymerization of the compositions (S center dot DM, SO center dot DM, SO2 center dot DM and NVP) and the initiator (Irgacure 651) was carried out. The influence of oxidation number of sulfur on the properties of the obtained copolymers was studied. The following properties were determined: density, glass transition temperature, Young's modulus, hardness and tensile strength. Additionally, dynamic-mechanical and thermal properties were investigated. Thermal properties of copolymers under different conditions (in air, in nitrogen and in helium) were tested.
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