The Effect of SiMe 3 and SiEt 3 Para Substituents for High Activity and Introduction of a Hydroxy Group in Ethylene Copolymerization Catalyzed by Phenoxide‐Modified Half‐Titanocenes
Publication type: Journal Article
Publication date: 2020-10-07
scimago Q1
wos Q1
SJR: 5.550
CiteScore: 27.6
Impact factor: 16.9
ISSN: 14337851, 15213773
PubMed ID:
32886419
General Chemistry
Catalysis
Abstract
Remarkable effects of SiMe3 and SiEt3 para-substituents in the phenoxide-modified half-titanocenes, Cp*TiCl2 (O-2,6-i Pr2 -4-R-C6 H2 ) [R=SiMe3 (6), SiEt3 (7)], toward the catalytic activities in ethylene copolymerizations with 2-methyl-1-pentene, 1-decene, 1-dodecene and with 9-decen-1-ol (DC-OH) have been demonstrated. The activities by 6, 7 at 50 °C showed higher than those conducted at 25 °C in all cases in the presence of MAO cocatalyst. Efficient synthesis of high-molecular-weight (HMW) ethylene copolymers incorporating DC-OH (or 5-hexen-1-ol, HX-OH) has been attained in the copolymerization by 7, which showed better DC-OH (HX-OH) incorporation at 50 °C to afford the HMW copolymers, poly(ethylene-co-DC-OH)s, with high activities (activity 1.21-3.81×105 kg-polymer mol-1 -Ti h, Mn =6.55-10.0×104 , DC-OH 2.3-3.6 mol %).
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37
Total citations:
37
Citations from 2024:
21
(56.76%)
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Kitphaitun S., Qing Y., Nomura K. The Effect of SiMe 3 and SiEt 3 Para Substituents for High Activity and Introduction of a Hydroxy Group in Ethylene Copolymerization Catalyzed by Phenoxide‐Modified Half‐Titanocenes // Angewandte Chemie - International Edition. 2020. Vol. 59. No. 51. pp. 23072-23076.
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Kitphaitun S., Qing Y., Nomura K. The Effect of SiMe 3 and SiEt 3 Para Substituents for High Activity and Introduction of a Hydroxy Group in Ethylene Copolymerization Catalyzed by Phenoxide‐Modified Half‐Titanocenes // Angewandte Chemie - International Edition. 2020. Vol. 59. No. 51. pp. 23072-23076.
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RIS
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TY - JOUR
DO - 10.1002/anie.202010559
UR - https://doi.org/10.1002/anie.202010559
TI - The Effect of SiMe 3 and SiEt 3 Para Substituents for High Activity and Introduction of a Hydroxy Group in Ethylene Copolymerization Catalyzed by Phenoxide‐Modified Half‐Titanocenes
T2 - Angewandte Chemie - International Edition
AU - Kitphaitun, Suphitchaya
AU - Qing, Yan
AU - Nomura, Kotohiro
PY - 2020
DA - 2020/10/07
PB - Wiley
SP - 23072-23076
IS - 51
VL - 59
PMID - 32886419
SN - 1433-7851
SN - 1521-3773
ER -
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@article{2020_Kitphaitun,
author = {Suphitchaya Kitphaitun and Yan Qing and Kotohiro Nomura},
title = {The Effect of SiMe 3 and SiEt 3 Para Substituents for High Activity and Introduction of a Hydroxy Group in Ethylene Copolymerization Catalyzed by Phenoxide‐Modified Half‐Titanocenes},
journal = {Angewandte Chemie - International Edition},
year = {2020},
volume = {59},
publisher = {Wiley},
month = {oct},
url = {https://doi.org/10.1002/anie.202010559},
number = {51},
pages = {23072--23076},
doi = {10.1002/anie.202010559}
}
Cite this
MLA
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Kitphaitun, Suphitchaya, et al. “The Effect of SiMe 3 and SiEt 3 Para Substituents for High Activity and Introduction of a Hydroxy Group in Ethylene Copolymerization Catalyzed by Phenoxide‐Modified Half‐Titanocenes.” Angewandte Chemie - International Edition, vol. 59, no. 51, Oct. 2020, pp. 23072-23076. https://doi.org/10.1002/anie.202010559.