Aliphatic Polyester/polyhedral Oligomeric Silsesquioxanes Hybrid Networks via Copper-free 1,3-dipolar Cycloaddition Click Reaction

Reyhan Ozdogan, Ozgun Daglar, Hakan Durmaz, Mehmet Atilla Tasdelen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


In this study, we describe the preparation and characterization of a new class of thermoset hybrid networks containing aliphatic polyester and polyhedral oligomeric silsesquioxanes (POSS). The copper-free 1,3-dipolar cycloaddition click reaction of internal alkyne functionalized aliphatic polyester and multifunctional azido POSS with different concentrations led to highly crosslinked thermoset networks. The click reactions performed under ambient conditions (i.e., in tetrahydrofuran at room temperature for 1 day) in the absence of any catalyst. The chemical composition of hybrid networks and homogenous distribution of POSS molecules were confirmed by Fourier transform infrared spectroscopy and scanning electron microscopy with energy dispersive spectroscopy. The swelling ratios of hybrid networks were commonly decreased by increasing POSS-N3 content and by changing polar solvents to apolar solvents. Thermogravimetric analysis results demonstrated that the thermal stability of hybrid networks increased with higher POSS feeding ratio. Tensile tests were applied to evaluate the mechanical properties of hybrid networks. Compared to neat aliphatic polyester, the mechanical properties of hybrid networks significantly improved. For instance, the tensile strength were enhanced from 5 MPa to 19 MPa by increasing the concentration of azido functionalized POSS from 10 to 40.

Original languageEnglish
Pages (from-to)2222-2227
Number of pages6
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Issue number22
Publication statusPublished - 15 Nov 2019

Bibliographical note

Publisher Copyright:
© 2019 Wiley Periodicals, Inc.


The authors would like to thank Yalova University Research Fund for financial support (BAP Project number: 2019/DR/0003).

FundersFunder number
Yalova University Research Fund
British Association for Psychopharmacology2019/DR/0003


    • click chemistry
    • hybrid networks
    • nanoparticles
    • networks and polyesters
    • polyester
    • polyhedral oligomeric silsesquioxanes
    • thermosets


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