Unlike their more common linear counterparts, cyclic polymers have a ring-like structure and
a lack of chain ends. Because of their topology, cyclic polymers exhibit a unique set of …

Cyclic polymers have long been reported in the literature, but their development has often
been stunted by synthetic difficulties such as the presence of linear contaminants. Research …

The existing catalyst/initiator systems and methodologies used for the synthesis of polymers
can access only a few cyclic polymers composed entirely of a single monomer type, and the …

Steady-state shear viscosity η (γ̇) of unconcatenated ring polymer melts as a function of the
shear rate γ̇ is studied by a combination of experiments, simulations, and theory …

The selective synthesis of ultrahigh-molar-mass (UHMM,> 2 million Da) cyclic polymers is
challenging as an exceptional degree of spatiotemporal control is required to overcome the …

Ring polymers have fascinated scientists for decades, but experimental progress has been
challenging due to the presence of linear chain contaminants that fundamentally alter …

This study demonstrates the comprehensive investigation on the reversible linear–cyclic
topological conversion of hydrophilic and hydrophobic polymers with various molecular …

The static and dynamic properties of ring polymers in concentrated solutions remains one of
the last deep unsolved questions in polymer physics. At the same time, the nature of the …

Conformationally fluctuating, globally compact macromolecules such as polymeric rings,
single-chain nanoparticles, microgels, and many-arm stars display complex dynamic …

We combine linear viscoelastic measurements and modeling in order to explore the
dynamics of blends of the same-molecular-weight ring and linear polymers in the regime of …