The present disclosure provides cyclic silyl ethers of the formula:and salts thereof. The cyclic silyl ethers may be useful as monomers for preparing polymers. Also described herein are polymers prepared by polymerizing a cyclic silyl ether and optionally one or more additional monomers. The polymers may be degradable (e.g., biodegradable). One or more O—；Si bonds of the polymers may be the degradation sites. Also described herein are compositions and kits including the cyclic silyl ethers or polymers； methods of preparing the polymers； and methods of using the polymers, compositions, and kits.
