The synthesis, properties and potential applications of cyclic polymers

FM Haque, SM Grayson - Nature Chemistry, 2020 - nature.com
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 …

Glass formation in ring polymer melts having variable knot complexity and molecular mass

YT Dong, XY Song, X Xu, S Jiang, JF Douglas… - …, 2024 - ACS Publications
The variation of polymer topology provides an alternative way to tune the properties of
polymer materials without varying the chemistry of the monomers composing the polymer …

Enhanced dielectric strength and capacitive energy density of cyclic polystyrene films

M Singh, M Dong, W Wu, R Nejat, DK Tran… - ACS Polymers …, 2022 - ACS Publications
The maximum capacitive energy stored in polymeric dielectric capacitors, which are
ubiquitous in high-power-density devices, is dictated by the dielectric breakdown strength of …

Glass transition temperature of cyclic polystyrene and the linear counterpart contamination effect

L Gao, J Oh, Y Tu, T Chang, CY Li - Polymer, 2019 - Elsevier
We present here a systematic investigation on the glass transition temperature (T g) for a
series of highly purified cyclic polystyrene (c-PS) samples with molecular weight (MW) …

Fabrication of cyclic brush copolymers with heterogeneous amphiphilic polymer brushes for controlled drug release

Z Liu, Y Huang, X Zhang, X Tu, M Wang, L Ma… - …, 2018 - ACS Publications
Cyclic brush (cb) copolymers that are composed of a cyclic core densely grafted with
radiating polymer brushes have emerged recently as innovative materials for both …

Effective construction of hyperbranched multicyclic polymer by combination of ATRP, UV-induced cyclization, and self-accelerating click reaction

C Liu, Y Fei, H Zhang, C Pan, C Hong - Macromolecules, 2018 - ACS Publications
Multicyclic polystyrene (PS) with hyperbranched structure was constructed in an efficient
way. First, a seesaw-type PS was synthesized via atom transfer radical polymerization …

Structure and dynamics of star polymer films from coarse-grained molecular simulations

W Zhang, JF Douglas, A Chremos, FW Starr - Macromolecules, 2021 - ACS Publications
We simulate the structure and dynamics of star polymer films of varying arm mass Ma and
number of star arms f on a supporting solid substrate with an attractive interaction and …

Reducing the bulk fragility and suppressing the fragility-confinement effect in polystyrene with very low levels of 2-ethylhexyl acrylate comonomer

T Wang, A Peera, J Reffner, JM Torkelson - Macromolecules, 2023 - ACS Publications
The effects of nanoconfinement on the glass-transition temperature (T g) and fragility index
(m) of thin polymer films, eg, polystyrene (PS), can be substantial. We recently demonstrated …

Eliminating the Tg-Confinement Effect in Polystyrene Films: Extraordinary Impact of a 2 mol % 2-Ethylhexyl Acrylate Comonomer

T Wang, S Hu, S Zhang, A Peera, J Reffner… - …, 2022 - ACS Publications
Nanoconfined polystyrene (PS) films exhibit substantial reductions in glass transition
temperature (T g) from bulk T g. By incorporating 2–6 mol% 2-ethylhexyl acrylate (EHA) into …

Random Copolymers Based on 2‐Ethylhexyl Acrylate Exhibit Unusual Glass Transition Breadth and Facile Autonomous Self‐Healing over a Broad Composition …

T Wang, WO Young, MJ Suazo, A Peera… - Macromolecular …, 2024 - Wiley Online Library
Statistical copolymers are commercially important because their properties can be tuned by
comonomer selection and composition. Rubbery‐state styrene (S)/n‐butyl acrylate (nBA) …