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Efficient Two Step Synthesis for Trimethylsiloxy-Functionalized New Polymers

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Abstract

We have presented an efficient strategy for the synthesis of trimethylsiloxy end-functionalized new polymers using ring-opening metathesis polymerization with ruthenium initiator, [(PCy3)2Cl2Ru=CHPh]. The key steps for the new silicon containing end-capped polymers are: In the first step, direct end-capping is carried out by adding cis-2-butene-1,4-diol to the ring-opened norbornene dicarboximides. In the second step, the reaction of hydroxy-functionalized polymers with trimethylsilyl chloride gives trimethylsiloxy-functionalized polymers. The best results for the end group introduction are achieved by reacting the living chains with an excess of the terminating agent. The molecular and structural features of the obtained polymers were confirmed by NMR and GPC analyzes, and their thermal properties were investigated by DSC. End-functionalization efficiency values were determined by NMR spectroscopy.

Keywords

Direct-capping ROMP Functionalized polymers Polynorbornene dicarboximides 

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Notes

Acknowledgements

We thank Kirikkale University Scientific Research Projects Coordination Unit for the financial assistance through the project (Project No. 2011/08).

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© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of ChemistryKirikkale UniversityYahsihanTurkey

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