Synthesis and characterization of thermoplastic copolyester elastomers modified with fumaric moieties
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A series of poly(ether-ester)s derived from dimethyl terephthalate (DMT), dimethyl fumarate (DMF), 1,4-butandiol (BD) and poly(tetramethylene oxide) (PTMO, M̄n = 1000 g/mol) was synthesized in a two stage process involving transesterification and polycondensation in the melt. The mole ratio of the starting components was selected to result in copolymers with a constant hard:soft segment wieght ratio (56:44). The amount of DMF was 10 mol %, referred to the total amount of the esters used. The synthesis was optimized in terms of both the concentration of catalyst, tetra-n-butyl-titanate, Ti(OBu)4 and thermal stabilizer N,N'-diphenyl-p-phenylenediamine, DPPD, as well as the temperature. The composition and structure of the synthesized poly(ether-ester)s were characterized by 1H-NMR. The number average molecular weights of the polymers calculated from the 1H-NMR spectra were compared with the corresponding values of the inherent viscosity (ηinh) in m-cresol and the complex dynamic viscosit...y (η*). The effect of the content of fumaric residues on the thermal properties of the synthesized copolyesters was also investigated using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA).
Кључне речи:
H-NMR-spectroscopy / Fumaric residue / Poly(ether-ester)s / Thermoplastic elastomersИзвор:
Journal of the Serbian Chemical Society, 2001, 66, 3, 139-152Издавач:
- Serbian Chemical Society
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Aleksandrović, Vesna AU - Đonlagić, Jasna PY - 2001 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5357 AB - A series of poly(ether-ester)s derived from dimethyl terephthalate (DMT), dimethyl fumarate (DMF), 1,4-butandiol (BD) and poly(tetramethylene oxide) (PTMO, M̄n = 1000 g/mol) was synthesized in a two stage process involving transesterification and polycondensation in the melt. The mole ratio of the starting components was selected to result in copolymers with a constant hard:soft segment wieght ratio (56:44). The amount of DMF was 10 mol %, referred to the total amount of the esters used. The synthesis was optimized in terms of both the concentration of catalyst, tetra-n-butyl-titanate, Ti(OBu)4 and thermal stabilizer N,N'-diphenyl-p-phenylenediamine, DPPD, as well as the temperature. The composition and structure of the synthesized poly(ether-ester)s were characterized by 1H-NMR. The number average molecular weights of the polymers calculated from the 1H-NMR spectra were compared with the corresponding values of the inherent viscosity (ηinh) in m-cresol and the complex dynamic viscosity (η*). The effect of the content of fumaric residues on the thermal properties of the synthesized copolyesters was also investigated using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). PB - Serbian Chemical Society T2 - Journal of the Serbian Chemical Society T1 - Synthesis and characterization of thermoplastic copolyester elastomers modified with fumaric moieties EP - 152 IS - 3 SP - 139 VL - 66 DO - 10.2298/jsc0103139a ER -
@article{ author = "Aleksandrović, Vesna and Đonlagić, Jasna", year = "2001", abstract = "A series of poly(ether-ester)s derived from dimethyl terephthalate (DMT), dimethyl fumarate (DMF), 1,4-butandiol (BD) and poly(tetramethylene oxide) (PTMO, M̄n = 1000 g/mol) was synthesized in a two stage process involving transesterification and polycondensation in the melt. The mole ratio of the starting components was selected to result in copolymers with a constant hard:soft segment wieght ratio (56:44). The amount of DMF was 10 mol %, referred to the total amount of the esters used. The synthesis was optimized in terms of both the concentration of catalyst, tetra-n-butyl-titanate, Ti(OBu)4 and thermal stabilizer N,N'-diphenyl-p-phenylenediamine, DPPD, as well as the temperature. The composition and structure of the synthesized poly(ether-ester)s were characterized by 1H-NMR. The number average molecular weights of the polymers calculated from the 1H-NMR spectra were compared with the corresponding values of the inherent viscosity (ηinh) in m-cresol and the complex dynamic viscosity (η*). The effect of the content of fumaric residues on the thermal properties of the synthesized copolyesters was also investigated using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA).", publisher = "Serbian Chemical Society", journal = "Journal of the Serbian Chemical Society", title = "Synthesis and characterization of thermoplastic copolyester elastomers modified with fumaric moieties", pages = "152-139", number = "3", volume = "66", doi = "10.2298/jsc0103139a" }
Aleksandrović, V.,& Đonlagić, J.. (2001). Synthesis and characterization of thermoplastic copolyester elastomers modified with fumaric moieties. in Journal of the Serbian Chemical Society Serbian Chemical Society., 66(3), 139-152. https://doi.org/10.2298/jsc0103139a
Aleksandrović V, Đonlagić J. Synthesis and characterization of thermoplastic copolyester elastomers modified with fumaric moieties. in Journal of the Serbian Chemical Society. 2001;66(3):139-152. doi:10.2298/jsc0103139a .
Aleksandrović, Vesna, Đonlagić, Jasna, "Synthesis and characterization of thermoplastic copolyester elastomers modified with fumaric moieties" in Journal of the Serbian Chemical Society, 66, no. 3 (2001):139-152, https://doi.org/10.2298/jsc0103139a . .