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Crosslinked poly(norbornene-dicarboximide)s as electro-optic chromophore hosts.

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Title: Crosslinked poly(norbornene-dicarboximide)s as electro-optic chromophore hosts.
Authors: Spring, Andrew M.1, Qiu, Feng1, Hong, Jianxun1, Bannaron, Alisa2, Kashino, Tsubasa3, Kikuchi, Takamasa3, Ozawa, Masaaki3, Nawata, Hideyuki3, Odoi, Keisuke3, Yokoyama, Shiyoshi1 s_yokoyama@cm.kyushu-u.ac.jp
Source: European Polymer Journal. Dec2017, Vol. 97, p263-271. 9p.
Subjects: Dicarboximides, Chromophores, Electrooptics, Crosslinked polymers, Ring formation (Chemistry), Metathesis reactions
Abstract: A series of crosslinked poly(norbornene-dicarboximide)s have been prepared by ring opening metathesis polymerization. Increasing quantities of a bifunctional norbornene-dicarboximide crosslinker was doped into a high T g cyclohexyl-substituted norbornene-dicarboximide monomer before polymerization. The wt% of the crosslinker was increased from 0.00 to 4.40 wt%, after which the polymers became gelated. Polymer molecular weights increased drastically from 23,500 to 2,135,000 g/mol, the polydispersities increased from 1.18 to 73.47 and the viscosities increased from 5.27 to 538.7 mPa·s as the wt% of the crosslinker was increased. The trans : cis vinylene ratio remained constant at 1:0.18 as well as the T g and T d with average values of 210 °C and 392 °C being measured. Five of the crosslinked polymers and the reference homopolymer were utilized as hosts for the high activity tert -butyldiphenylsilyl substituted FTC chromophore guest. The polymer host containing 1.96 wt% crosslinker was found to have a maximum r 33 of 78 pm/V when polled at 150 °C with an electric field strength of 100 V/μm. The r 33 increased linearly from 63 to 78 pm/V as the wt% of the crosslinker was increased from 0.00 to 1.96 wt%. The thermal and temporal stability was found to increase slightly with the 0.00 wt% polymer exhibiting a stability of 77%, while the 1.96 wt% polymer exhibited a stability of 79% when both were heated to 85 °C and aged for 500 h in air. [ABSTRACT FROM AUTHOR]
Copyright of European Polymer Journal is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Crosslinked poly(norbornene-dicarboximide)s as electro-optic chromophore hosts.
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  Data: <searchLink fieldCode="AR" term="%22Spring%2C+Andrew+M%2E%22">Spring, Andrew M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Qiu%2C+Feng%22">Qiu, Feng</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hong%2C+Jianxun%22">Hong, Jianxun</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bannaron%2C+Alisa%22">Bannaron, Alisa</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kashino%2C+Tsubasa%22">Kashino, Tsubasa</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Kikuchi%2C+Takamasa%22">Kikuchi, Takamasa</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Ozawa%2C+Masaaki%22">Ozawa, Masaaki</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Nawata%2C+Hideyuki%22">Nawata, Hideyuki</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Odoi%2C+Keisuke%22">Odoi, Keisuke</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Yokoyama%2C+Shiyoshi%22">Yokoyama, Shiyoshi</searchLink><relatesTo>1</relatesTo><i> s_yokoyama@cm.kyushu-u.ac.jp</i>
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  Data: <searchLink fieldCode="JN" term="%22European+Polymer+Journal%22">European Polymer Journal</searchLink>. Dec2017, Vol. 97, p263-271. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Dicarboximides%22">Dicarboximides</searchLink><br /><searchLink fieldCode="DE" term="%22Chromophores%22">Chromophores</searchLink><br /><searchLink fieldCode="DE" term="%22Electrooptics%22">Electrooptics</searchLink><br /><searchLink fieldCode="DE" term="%22Crosslinked+polymers%22">Crosslinked polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Ring+formation+%28Chemistry%29%22">Ring formation (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Metathesis+reactions%22">Metathesis reactions</searchLink>
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  Data: A series of crosslinked poly(norbornene-dicarboximide)s have been prepared by ring opening metathesis polymerization. Increasing quantities of a bifunctional norbornene-dicarboximide crosslinker was doped into a high T g cyclohexyl-substituted norbornene-dicarboximide monomer before polymerization. The wt% of the crosslinker was increased from 0.00 to 4.40 wt%, after which the polymers became gelated. Polymer molecular weights increased drastically from 23,500 to 2,135,000 g/mol, the polydispersities increased from 1.18 to 73.47 and the viscosities increased from 5.27 to 538.7 mPa·s as the wt% of the crosslinker was increased. The trans : cis vinylene ratio remained constant at 1:0.18 as well as the T g and T d with average values of 210 °C and 392 °C being measured. Five of the crosslinked polymers and the reference homopolymer were utilized as hosts for the high activity tert -butyldiphenylsilyl substituted FTC chromophore guest. The polymer host containing 1.96 wt% crosslinker was found to have a maximum r 33 of 78 pm/V when polled at 150 °C with an electric field strength of 100 V/μm. The r 33 increased linearly from 63 to 78 pm/V as the wt% of the crosslinker was increased from 0.00 to 1.96 wt%. The thermal and temporal stability was found to increase slightly with the 0.00 wt% polymer exhibiting a stability of 77%, while the 1.96 wt% polymer exhibited a stability of 79% when both were heated to 85 °C and aged for 500 h in air. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of European Polymer Journal is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.eurpolymj.2017.10.022
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        Text: English
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        StartPage: 263
    Subjects:
      – SubjectFull: Dicarboximides
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      – SubjectFull: Chromophores
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      – SubjectFull: Electrooptics
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      – SubjectFull: Metathesis reactions
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              Text: Dec2017
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