Kinetic Analysis of Two Hyperbranched A2 + B3 Polycondensation Reactions by NMR Spectroscopy
Тип публикации: Journal Article
Дата публикации: 2007-08-21
SCImago Q1
Tоп 10% SCImago
WOS Q1
БС1
SJR: 1.257
CiteScore: 8.8
Impact factor: 5.7
ISSN: 00249297, 15205835
Materials Chemistry
Organic Chemistry
Inorganic Chemistry
Polymers and Plastics
Краткое описание
The kinetics of the polycondensation of A2 and B3 monomers leading to hyperbranched polyesters was studied by NMR spectroscopy and compared with theoretical predictions. Combinations of two different A2 monomers, the aromatic terephthaloyl chloride (TCl, A2) and the aliphatic adipic acid (AA, A2), respectively, with 1,1,1-tris(4-trimethylsiloxyphenyl)ethane (TMS−THPE, B3) and 1,1,1-tris(4-hydroxyphenyl)ethane (THPE, B3), respectively, were studied in different molar ratios of the monomers. On the basis of a complete 1H and 13C NMR signal assignment for the structural units of the two resulting hyperbranched polymers their relative concentration as a function of conversion was determined. In the case of TCl/TMS−THPE, the degree of branching just before gelation increased with increasing A2 content. A further increase of DB could be obtained by sequential addition of the A2 + B3 monomer mixture. Since the kinetic data for that system did not describe the development of structural units expected for equal an...
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Reisch A., Komber H., Voit B. Kinetic Analysis of Two Hyperbranched A2 + B3 Polycondensation Reactions by NMR Spectroscopy // Macromolecules. 2007. Vol. 40. No. 19. pp. 6846-6858.
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Reisch A., Komber H., Voit B. Kinetic Analysis of Two Hyperbranched A2 + B3 Polycondensation Reactions by NMR Spectroscopy // Macromolecules. 2007. Vol. 40. No. 19. pp. 6846-6858.
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TY - JOUR
DO - 10.1021/ma070812g
UR - https://doi.org/10.1021/ma070812g
TI - Kinetic Analysis of Two Hyperbranched A2 + B3 Polycondensation Reactions by NMR Spectroscopy
T2 - Macromolecules
AU - Reisch, Andreas
AU - Komber, Hartmut
AU - Voit, B.
PY - 2007
DA - 2007/08/21
PB - American Chemical Society (ACS)
SP - 6846-6858
IS - 19
VL - 40
SN - 0024-9297
SN - 1520-5835
ER -
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@article{2007_Reisch,
author = {Andreas Reisch and Hartmut Komber and B. Voit},
title = {Kinetic Analysis of Two Hyperbranched A2 + B3 Polycondensation Reactions by NMR Spectroscopy},
journal = {Macromolecules},
year = {2007},
volume = {40},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/ma070812g},
number = {19},
pages = {6846--6858},
doi = {10.1021/ma070812g}
}
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MLA
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Reisch, Andreas, et al. “Kinetic Analysis of Two Hyperbranched A2 + B3 Polycondensation Reactions by NMR Spectroscopy.” Macromolecules, vol. 40, no. 19, Aug. 2007, pp. 6846-6858. https://doi.org/10.1021/ma070812g.
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