I'm approaching chemistry and I read on Wikipedia that
The modern concept of polymers as covalently bonded macromolecular structures was proposed in 1920 by Hermann Staudinger"
But then the article goes on and it says:
Historically, products arising from the linkage of repeating units by covalent chemical bonds have been the primary focus of polymer science; emerging important areas of the science now focus on non-covalent links.
So now I'm wondering, are there polymers whose monomers are bonded in other ways?