Biorenewable ROMP-based thermosetting copolymers from functionalized castor oil derivative with various cross-linking agents

Rui Ding; Ying Xia; Timothy C. Mauldin; Michael R. Kessler

doi:10.1016/j.polymer.2014.09.023

Biorenewable ROMP-based thermosetting copolymers from functionalized castor oil derivative with various cross-linking agents

Rui Ding, Ying Xia, Timothy C. Mauldin, Michael R. Kessler

Chemistry (Twin Cities)

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

15 Scopus citations

Abstract

A new norbornenyl-functionalized castor oil alcohol (NCA) was synthesized and ring-opening metathesis copolymerized separately with two norbornene-based cross-linking agents: dicyclopentadiene (DCPD) and a bifunctional norbornene crosslinker (CL). Isothermal differential scanning calorimetry (DSC) was used to examine the cure behavior of NCA/DCPD and NCA/CL resins, through which a reasonable cure schedule was determined. The glass transition temperature (T_g) and storage modulus (E′), characterized by dynamic mechanical analysis (DMA), increased significantly in both copolymer systems with the addition of cross-linking agents. Cross-link density of the two systems was evaluated using a modified empirical equation from the kinetic theory of rubber elasticity. Differences in tensile stress-strain behavior and thermal stability between polymerized NCA/DCPD and NCA/CL were correlated to the structural rigidity and cross-linking density resulting from the cross-linking agents.

Original language	English (US)
Pages (from-to)	5718-5726
Number of pages	9
Journal	Polymer
Volume	55
Issue number	22
DOIs	https://doi.org/10.1016/j.polymer.2014.09.023
State	Published - Oct 23 2014

Bibliographical note

Funding Information:
This material is based upon work supported by the National Science Foundation under Grant No. CMMI1348747 . We are also thankful to Professor Richard Larock from the Department of Chemistry at Iowa State University (ISU) for the use of lab equipment for monomer preparation. Additionally, we thank Dr. David Grewell and Mr. Russell Huffman from the Department of Agricultural and Biosystems Engineering at ISU for their careful assistance in the preparation of tensile testing samples.

Publisher Copyright:
© 2014 Elsevier Ltd.

Keywords

Castor oil
Cross-linking
Norbornenyl functionality

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10.1016/j.polymer.2014.09.023

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title = "Biorenewable ROMP-based thermosetting copolymers from functionalized castor oil derivative with various cross-linking agents",

abstract = "A new norbornenyl-functionalized castor oil alcohol (NCA) was synthesized and ring-opening metathesis copolymerized separately with two norbornene-based cross-linking agents: dicyclopentadiene (DCPD) and a bifunctional norbornene crosslinker (CL). Isothermal differential scanning calorimetry (DSC) was used to examine the cure behavior of NCA/DCPD and NCA/CL resins, through which a reasonable cure schedule was determined. The glass transition temperature (Tg) and storage modulus (E′), characterized by dynamic mechanical analysis (DMA), increased significantly in both copolymer systems with the addition of cross-linking agents. Cross-link density of the two systems was evaluated using a modified empirical equation from the kinetic theory of rubber elasticity. Differences in tensile stress-strain behavior and thermal stability between polymerized NCA/DCPD and NCA/CL were correlated to the structural rigidity and cross-linking density resulting from the cross-linking agents.",

keywords = "Castor oil, Cross-linking, Norbornenyl functionality",

author = "Rui Ding and Ying Xia and Mauldin, {Timothy C.} and Kessler, {Michael R.}",

note = "Funding Information: This material is based upon work supported by the National Science Foundation under Grant No. CMMI1348747 . We are also thankful to Professor Richard Larock from the Department of Chemistry at Iowa State University (ISU) for the use of lab equipment for monomer preparation. Additionally, we thank Dr. David Grewell and Mr. Russell Huffman from the Department of Agricultural and Biosystems Engineering at ISU for their careful assistance in the preparation of tensile testing samples. Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd.",

year = "2014",

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doi = "10.1016/j.polymer.2014.09.023",

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T1 - Biorenewable ROMP-based thermosetting copolymers from functionalized castor oil derivative with various cross-linking agents

AU - Ding, Rui

AU - Xia, Ying

AU - Mauldin, Timothy C.

AU - Kessler, Michael R.

N1 - Funding Information: This material is based upon work supported by the National Science Foundation under Grant No. CMMI1348747 . We are also thankful to Professor Richard Larock from the Department of Chemistry at Iowa State University (ISU) for the use of lab equipment for monomer preparation. Additionally, we thank Dr. David Grewell and Mr. Russell Huffman from the Department of Agricultural and Biosystems Engineering at ISU for their careful assistance in the preparation of tensile testing samples. Publisher Copyright: © 2014 Elsevier Ltd.

PY - 2014/10/23

Y1 - 2014/10/23

N2 - A new norbornenyl-functionalized castor oil alcohol (NCA) was synthesized and ring-opening metathesis copolymerized separately with two norbornene-based cross-linking agents: dicyclopentadiene (DCPD) and a bifunctional norbornene crosslinker (CL). Isothermal differential scanning calorimetry (DSC) was used to examine the cure behavior of NCA/DCPD and NCA/CL resins, through which a reasonable cure schedule was determined. The glass transition temperature (Tg) and storage modulus (E′), characterized by dynamic mechanical analysis (DMA), increased significantly in both copolymer systems with the addition of cross-linking agents. Cross-link density of the two systems was evaluated using a modified empirical equation from the kinetic theory of rubber elasticity. Differences in tensile stress-strain behavior and thermal stability between polymerized NCA/DCPD and NCA/CL were correlated to the structural rigidity and cross-linking density resulting from the cross-linking agents.

AB - A new norbornenyl-functionalized castor oil alcohol (NCA) was synthesized and ring-opening metathesis copolymerized separately with two norbornene-based cross-linking agents: dicyclopentadiene (DCPD) and a bifunctional norbornene crosslinker (CL). Isothermal differential scanning calorimetry (DSC) was used to examine the cure behavior of NCA/DCPD and NCA/CL resins, through which a reasonable cure schedule was determined. The glass transition temperature (Tg) and storage modulus (E′), characterized by dynamic mechanical analysis (DMA), increased significantly in both copolymer systems with the addition of cross-linking agents. Cross-link density of the two systems was evaluated using a modified empirical equation from the kinetic theory of rubber elasticity. Differences in tensile stress-strain behavior and thermal stability between polymerized NCA/DCPD and NCA/CL were correlated to the structural rigidity and cross-linking density resulting from the cross-linking agents.

KW - Castor oil

KW - Cross-linking

KW - Norbornenyl functionality

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ER -

Biorenewable ROMP-based thermosetting copolymers from functionalized castor oil derivative with various cross-linking agents

Abstract

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