Model linear low density polyethylenes from the ROMP of 5-hexylcyclooct-1-ene

Shingo Kobayashi; Christopher W. MacOsko; Marc A. Hillmyer

doi:10.1071/CH10039

Model linear low density polyethylenes from the ROMP of 5-hexylcyclooct-1-ene

Shingo Kobayashi
, Christopher W. MacOsko
, Marc A. Hillmyer

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

17 Scopus citations

Abstract

Model hexyl-branched linear low density polyethylene (C8-LLDPE) samples were synthesized by the ring-opening metathesis copolymerization (ROMP) of the 5-hexylcyclooct-1-ene (1) and cyclooctadiene (COD), followed by catalytic hydrogenation. The ROMP of 1 and copolymerization of 1 and COD using the Grubbs second generation catalyst (G2) afford polymers with the number of hexyl branches based on the feed composition. The resulting hexyl-branched polymers, poly(1) and poly(1-stat-COD), were completely converted into model C8-LLDPE samples by catalytic hydrogenation. The C8-LLDPE samples exhibit the expected reduction in density on branching content. The melting temperature (T _m), crystallization temperature (T_c), and heat of fusion/crystallization (ΔH_m/ΔH_c) of these materials were studied by differential scanning calorimetry.

Original language	English (US)
Pages (from-to)	1201-1209
Number of pages	9
Journal	Australian Journal of Chemistry
Volume	63
Issue number	8
DOIs	https://doi.org/10.1071/CH10039
State	Published - 2010

Bibliographical note

Funding Information:
This work was supported by The Dow Chemical Co. and the Abu Dhabi-Minnesota Institute for Research Excellence (ADMIRE); a partnership between the Petroleum Institute (PI) of Abu Dhabi and the Department of Chemical Engineering and Materials Science of the University of Minnesota.

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title = "Model linear low density polyethylenes from the ROMP of 5-hexylcyclooct-1-ene",

abstract = "Model hexyl-branched linear low density polyethylene (C8-LLDPE) samples were synthesized by the ring-opening metathesis copolymerization (ROMP) of the 5-hexylcyclooct-1-ene (1) and cyclooctadiene (COD), followed by catalytic hydrogenation. The ROMP of 1 and copolymerization of 1 and COD using the Grubbs second generation catalyst (G2) afford polymers with the number of hexyl branches based on the feed composition. The resulting hexyl-branched polymers, poly(1) and poly(1-stat-COD), were completely converted into model C8-LLDPE samples by catalytic hydrogenation. The C8-LLDPE samples exhibit the expected reduction in density on branching content. The melting temperature (T m), crystallization temperature (Tc), and heat of fusion/crystallization (ΔHm/ΔHc) of these materials were studied by differential scanning calorimetry.",

author = "Shingo Kobayashi and MacOsko, \{Christopher W.\} and Hillmyer, \{Marc A.\}",

note = "Funding Information: This work was supported by The Dow Chemical Co. and the Abu Dhabi-Minnesota Institute for Research Excellence (ADMIRE); a partnership between the Petroleum Institute (PI) of Abu Dhabi and the Department of Chemical Engineering and Materials Science of the University of Minnesota.",

year = "2010",

doi = "10.1071/CH10039",

language = "English (US)",

volume = "63",

pages = "1201--1209",

journal = "Australian Journal of Chemistry",

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T1 - Model linear low density polyethylenes from the ROMP of 5-hexylcyclooct-1-ene

AU - Kobayashi, Shingo

AU - MacOsko, Christopher W.

AU - Hillmyer, Marc A.

N1 - Funding Information: This work was supported by The Dow Chemical Co. and the Abu Dhabi-Minnesota Institute for Research Excellence (ADMIRE); a partnership between the Petroleum Institute (PI) of Abu Dhabi and the Department of Chemical Engineering and Materials Science of the University of Minnesota.

PY - 2010

Y1 - 2010

N2 - Model hexyl-branched linear low density polyethylene (C8-LLDPE) samples were synthesized by the ring-opening metathesis copolymerization (ROMP) of the 5-hexylcyclooct-1-ene (1) and cyclooctadiene (COD), followed by catalytic hydrogenation. The ROMP of 1 and copolymerization of 1 and COD using the Grubbs second generation catalyst (G2) afford polymers with the number of hexyl branches based on the feed composition. The resulting hexyl-branched polymers, poly(1) and poly(1-stat-COD), were completely converted into model C8-LLDPE samples by catalytic hydrogenation. The C8-LLDPE samples exhibit the expected reduction in density on branching content. The melting temperature (T m), crystallization temperature (Tc), and heat of fusion/crystallization (ΔHm/ΔHc) of these materials were studied by differential scanning calorimetry.

AB - Model hexyl-branched linear low density polyethylene (C8-LLDPE) samples were synthesized by the ring-opening metathesis copolymerization (ROMP) of the 5-hexylcyclooct-1-ene (1) and cyclooctadiene (COD), followed by catalytic hydrogenation. The ROMP of 1 and copolymerization of 1 and COD using the Grubbs second generation catalyst (G2) afford polymers with the number of hexyl branches based on the feed composition. The resulting hexyl-branched polymers, poly(1) and poly(1-stat-COD), were completely converted into model C8-LLDPE samples by catalytic hydrogenation. The C8-LLDPE samples exhibit the expected reduction in density on branching content. The melting temperature (T m), crystallization temperature (Tc), and heat of fusion/crystallization (ΔHm/ΔHc) of these materials were studied by differential scanning calorimetry.

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U2 - 10.1071/CH10039

DO - 10.1071/CH10039

M3 - Article

AN - SCOPUS:77955673237

SN - 0004-9425

VL - 63

SP - 1201

EP - 1209

JO - Australian Journal of Chemistry

JF - Australian Journal of Chemistry

IS - 8

ER -

Model linear low density polyethylenes from the ROMP of 5-hexylcyclooct-1-ene

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