Preparation and properties of ethylene/POSS copolymer with rac-Et(Ind) 2ZrCl2 catalyst

H. X. Zhang; M. S. Jung; Y. J. Shin; K. B. Yoon; D. H. Lee

doi:10.1002/app.29284

Preparation and properties of ethylene/POSS copolymer with rac-Et(Ind) ₂ZrCl₂ catalyst

H. X. Zhang, M. S. Jung, Y. J. Shin, K. B. Yoon, D. H. Lee

Research output: Contribution to journal › Article › peer-review

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Abstract

The various monovinyl-functional polyhedral olίgomerie silsesquioxane (POSS) monomers had been copolymerized with ethylene (E) using rac-Et(Ind)2 ZrC2 and a modified methylaluminoxane (MMAO) cocatalyst. The unreacted POSS monomer could be removed completely by washing the copolymerization product with n-hexane. And the copolymers were characterized with 1H NMR, TEM, DSC, TGA, and GPC to know the composition, thermal properties, molecular weight and its distribution, respectively. According to 1H NMR data, the monomer reactivity ratios of various POSS monomers were calculated by the Fineman-Ross and Kelen-Tudos methods. Thermogravimetríc analysis of E/POSS copolymers exhibited an improved thermal stability with a higher degradation temperature and char yields, demonstrating that the inclusion of inorganic POSS nanoparticles made the organic polymer matrix more thermally robust.

Original language	English
Pages (from-to)	2697-2702
Number of pages	6
Journal	Journal of Applied Polymer Science
Volume	111
Issue number	6
DOIs	https://doi.org/10.1002/app.29284
State	Published - 2009

Keywords

Copolymerization
Ethylene
Hybrid
Nanocomposite
POSS

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title = "Preparation and properties of ethylene/POSS copolymer with rac-Et(Ind) 2ZrCl2 catalyst",

abstract = "The various monovinyl-functional polyhedral olίgomerie silsesquioxane (POSS) monomers had been copolymerized with ethylene (E) using rac-Et(Ind)2 ZrC2 and a modified methylaluminoxane (MMAO) cocatalyst. The unreacted POSS monomer could be removed completely by washing the copolymerization product with n-hexane. And the copolymers were characterized with 1H NMR, TEM, DSC, TGA, and GPC to know the composition, thermal properties, molecular weight and its distribution, respectively. According to 1H NMR data, the monomer reactivity ratios of various POSS monomers were calculated by the Fineman-Ross and Kelen-Tudos methods. Thermogravimetr{\'i}c analysis of E/POSS copolymers exhibited an improved thermal stability with a higher degradation temperature and char yields, demonstrating that the inclusion of inorganic POSS nanoparticles made the organic polymer matrix more thermally robust.",

keywords = "Copolymerization, Ethylene, Hybrid, Nanocomposite, POSS",

author = "Zhang, {H. X.} and Jung, {M. S.} and Shin, {Y. J.} and Yoon, {K. B.} and Lee, {D. H.}",

year = "2009",

doi = "10.1002/app.29284",

language = "English",

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journal = "Journal of Applied Polymer Science",

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T1 - Preparation and properties of ethylene/POSS copolymer with rac-Et(Ind) 2ZrCl2 catalyst

AU - Zhang, H. X.

AU - Jung, M. S.

AU - Shin, Y. J.

AU - Yoon, K. B.

AU - Lee, D. H.

PY - 2009

Y1 - 2009

N2 - The various monovinyl-functional polyhedral olίgomerie silsesquioxane (POSS) monomers had been copolymerized with ethylene (E) using rac-Et(Ind)2 ZrC2 and a modified methylaluminoxane (MMAO) cocatalyst. The unreacted POSS monomer could be removed completely by washing the copolymerization product with n-hexane. And the copolymers were characterized with 1H NMR, TEM, DSC, TGA, and GPC to know the composition, thermal properties, molecular weight and its distribution, respectively. According to 1H NMR data, the monomer reactivity ratios of various POSS monomers were calculated by the Fineman-Ross and Kelen-Tudos methods. Thermogravimetríc analysis of E/POSS copolymers exhibited an improved thermal stability with a higher degradation temperature and char yields, demonstrating that the inclusion of inorganic POSS nanoparticles made the organic polymer matrix more thermally robust.

AB - The various monovinyl-functional polyhedral olίgomerie silsesquioxane (POSS) monomers had been copolymerized with ethylene (E) using rac-Et(Ind)2 ZrC2 and a modified methylaluminoxane (MMAO) cocatalyst. The unreacted POSS monomer could be removed completely by washing the copolymerization product with n-hexane. And the copolymers were characterized with 1H NMR, TEM, DSC, TGA, and GPC to know the composition, thermal properties, molecular weight and its distribution, respectively. According to 1H NMR data, the monomer reactivity ratios of various POSS monomers were calculated by the Fineman-Ross and Kelen-Tudos methods. Thermogravimetríc analysis of E/POSS copolymers exhibited an improved thermal stability with a higher degradation temperature and char yields, demonstrating that the inclusion of inorganic POSS nanoparticles made the organic polymer matrix more thermally robust.

KW - Copolymerization

KW - Ethylene

KW - Hybrid

KW - Nanocomposite

KW - POSS

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DO - 10.1002/app.29284

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JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

IS - 6

ER -

Preparation and properties of ethylene/POSS copolymer with rac-Et(Ind) ₂ZrCl₂ catalyst

Abstract

Keywords

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