Synthesis and optical properties of cycloolefin copolymers

Keun Byoung Yoon; Ho Young Lee; Seok Kyun Noh; Dong Ho Lee

doi:10.1016/s0167-2991(06)80453-2

Synthesis and optical properties of cycloolefin copolymers

Keun Byoung Yoon, Ho Young Lee, Seok Kyun Noh, Dong Ho Lee

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

Abstract

In ethylene/norbornene (E/NB) copolymerization, iPr(Cp)(Flu)ZrCl ₂ and SiMe₂(Cp)₂ZrCl₂ catalysts exhibited more active than rac-Et(Ind)₂ZrCl₂ and SiMe ₂(Ind)₂ZrCl₂ catalysts. For ethylene/tetracyclododecene (E/TCD) copolymerization, the catalytic activity of rac-Et(Ind)₂ZrCl₂ was higher than that of iPr(Cp)(Flu)ZrCl₂. Copolymers generated with rac-Et(Ind) ₂ZrCl₂ contained NB microdiblocks with a maximum length of two NB units. The transmission of copolymers was above 90% over 300-900 nm. The refractive index(RI) of E/TCD copolymer was higher than that of E/NB copolymer. The RI of E/NB copolymer was found to be independent to NB contents, while, the RI of E/TCD copolymer increased with increasing of TCD contents.

Original language	English
Pages (from-to)	185-188
Number of pages	4
Journal	Studies in Surface Science and Catalysis
Volume	161
DOIs	https://doi.org/10.1016/s0167-2991(06)80453-2
State	Published - 2006

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title = "Synthesis and optical properties of cycloolefin copolymers",

abstract = "In ethylene/norbornene (E/NB) copolymerization, iPr(Cp)(Flu)ZrCl 2 and SiMe2(Cp)2ZrCl2 catalysts exhibited more active than rac-Et(Ind)2ZrCl2 and SiMe 2(Ind)2ZrCl2 catalysts. For ethylene/tetracyclododecene (E/TCD) copolymerization, the catalytic activity of rac-Et(Ind)2ZrCl2 was higher than that of iPr(Cp)(Flu)ZrCl2. Copolymers generated with rac-Et(Ind) 2ZrCl2 contained NB microdiblocks with a maximum length of two NB units. The transmission of copolymers was above 90% over 300-900 nm. The refractive index(RI) of E/TCD copolymer was higher than that of E/NB copolymer. The RI of E/NB copolymer was found to be independent to NB contents, while, the RI of E/TCD copolymer increased with increasing of TCD contents.",

author = "Yoon, {Keun Byoung} and Lee, {Ho Young} and Noh, {Seok Kyun} and Lee, {Dong Ho}",

year = "2006",

doi = "10.1016/s0167-2991(06)80453-2",

language = "English",

volume = "161",

pages = "185--188",

journal = "Studies in Surface Science and Catalysis",

issn = "0167-2991",

publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - Synthesis and optical properties of cycloolefin copolymers

AU - Yoon, Keun Byoung

AU - Lee, Ho Young

AU - Noh, Seok Kyun

AU - Lee, Dong Ho

PY - 2006

Y1 - 2006

N2 - In ethylene/norbornene (E/NB) copolymerization, iPr(Cp)(Flu)ZrCl 2 and SiMe2(Cp)2ZrCl2 catalysts exhibited more active than rac-Et(Ind)2ZrCl2 and SiMe 2(Ind)2ZrCl2 catalysts. For ethylene/tetracyclododecene (E/TCD) copolymerization, the catalytic activity of rac-Et(Ind)2ZrCl2 was higher than that of iPr(Cp)(Flu)ZrCl2. Copolymers generated with rac-Et(Ind) 2ZrCl2 contained NB microdiblocks with a maximum length of two NB units. The transmission of copolymers was above 90% over 300-900 nm. The refractive index(RI) of E/TCD copolymer was higher than that of E/NB copolymer. The RI of E/NB copolymer was found to be independent to NB contents, while, the RI of E/TCD copolymer increased with increasing of TCD contents.

AB - In ethylene/norbornene (E/NB) copolymerization, iPr(Cp)(Flu)ZrCl 2 and SiMe2(Cp)2ZrCl2 catalysts exhibited more active than rac-Et(Ind)2ZrCl2 and SiMe 2(Ind)2ZrCl2 catalysts. For ethylene/tetracyclododecene (E/TCD) copolymerization, the catalytic activity of rac-Et(Ind)2ZrCl2 was higher than that of iPr(Cp)(Flu)ZrCl2. Copolymers generated with rac-Et(Ind) 2ZrCl2 contained NB microdiblocks with a maximum length of two NB units. The transmission of copolymers was above 90% over 300-900 nm. The refractive index(RI) of E/TCD copolymer was higher than that of E/NB copolymer. The RI of E/NB copolymer was found to be independent to NB contents, while, the RI of E/TCD copolymer increased with increasing of TCD contents.

UR - http://www.scopus.com/inward/record.url?scp=33845656510&partnerID=8YFLogxK

U2 - 10.1016/s0167-2991(06)80453-2

DO - 10.1016/s0167-2991(06)80453-2

M3 - Article

AN - SCOPUS:33845656510

SN - 0167-2991

VL - 161

SP - 185

EP - 188

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

ER -

Synthesis and optical properties of cycloolefin copolymers

Abstract

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