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).
Keywords:
H-NMR-spectroscopy / Fumaric residue / Poly(ether-ester)s / Thermoplastic elastomersSource:
Journal of the Serbian Chemical Society, 2001, 66, 3, 139-152Publisher:
- Serbian Chemical Society
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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 . .