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Amphiphilic Polymer Co-networks From Telechelic Macromonomers Using Thiol–Norbornene Chemistry

Amphiphilic polymeric co-networks (APCNs) incorporate disparate properties into one network, forming novel materials for a variety of applications. A platform that can form APCNs with a variety of compositions was developed using thiol–norbornene chemistry to crosslink telechelic macromonomers with multifunctional thiols. Using thiol–norbornene end-linking chemistry ensured control over the molecular weight between crosslinks, forming more homogeneous networks than those formed by free radical crosslinking reactions. Networks made using the end-linking method were swollen in water and evaluated with a focus on their mechanical properties, measured under tension and compression, and structure, as characterised using small-angle neutron scattering. Dried networks were swollen with organic lithium salt and characterised as solid polymer electrolytes to determine their mechanical properties, conductivity and morphology. Additionally, the thiol–norbornene end-linking was easily adapted to make linear polymers, both amphiphilic multi-block copolymers and linear thioethers that incorporated a variety of precisely placed functional groups in and along the backbone. Overall, the flexibility of the thiol–norbornene end-linking platform allowed for the synthesis of a multitude of APCNs and will likely continue to be exploited in future studies to expand the APCN's composition and material properties.

Publication details

Print publication date
30 Apr 2020
Copyright year
Print ISBN
ePub eISBN
From the book series:
Polymer Chemistry Series