Recent advances in enantioselective ring-opening polymerization and copolymerization

X Xie, Z Huo, E Jang, R Tong - Communications Chemistry, 2023 - nature.com
Precisely controlling macromolecular stereochemistry and sequences is a powerful strategy
for manipulating polymer properties. Controlled synthetic routes to prepare degradable …

Recyclable and (Bio) degradable polyesters in a circular plastics economy

C Shi, EC Quinn, WT Diment, EYX Chen - Chemical Reviews, 2024 - ACS Publications
Polyesters carrying polar main-chain ester linkages exhibit distinct material properties for
diverse applications and thus play an important role in today's plastics economy. It is …

Chemically circular, mechanically tough, and melt-processable polyhydroxyalkanoates

L Zhou, Z Zhang, C Shi, M Scoti, DK Barange… - Science, 2023 - science.org
Polyhydroxyalkanoates (PHAs) have attracted increasing interest as sustainable plastics
because of their biorenewability and biodegradability in the ambient environment. However …

Installing controlled stereo-defects yields semicrystalline and biodegradable poly (3-hydroxybutyrate) with high toughness and optical clarity

EC Quinn, AH Westlie, A Sangroniz… - Journal of the …, 2023 - ACS Publications
Stereo-defects present in stereo-regular polymers often diminish thermal and mechanical
properties, and hence suppressing or eliminating them is a major aspirational goal for …

Oscillatory adaptive catalysis: Intramolecular chain shuttling regulated by stereo-autocorrection in stereoselective polymerization of lactide

W Zhao, F Cui, J He, Y Zhang, EYX Chen - Chem, 2024 - cell.com
In metal-mediated stereoselective polymerization of cyclic esters, racemic catalysts use their
enantiomers for enantioselective roles and achieve diverse polymer stereomicrostructures …

Atactic, Isotactic, and Syndiotactic Methylated Polyhydroxybutyrates: An Unexpected Series of Isomorphic Polymers

Z Zhou, AM LaPointe, GW Coates - Journal of the American …, 2023 - ACS Publications
Polyhydroxyalkanoates (PHAs), such as poly [(R)-3-hydroxybutyrates][(R)-P3HB], are
produced by bacteria and are promising alternatives to nondegradable polyolefin plastics …

Isotactic-rich polythioethers synthesized from asymmetric ring-opening polymerization of racemic terminal thiiranes

Y Xiao, TJ Yue, BH Ren, WM Ren, XB Lu - ACS Catalysis, 2023 - ACS Publications
The ring-opening polymerization (ROP) of thiiranes constitutes a straightforward route to
fabricating diverse polythioethers. However, poor stereochemical control during …

All-polyhydroxyalkanoate triblock copolymers via a stereoselective-chemocatalytic route

AH Westlie, SA Hesse, X Tang, EC Quinn… - ACS Macro …, 2023 - ACS Publications
Biodegradable polyhydroxyalkanoate (PHA) homopolymers and statistical copolymers are
ubiquitous in microbially produced PHAs, but the step-growth polycondensation mechanism …

Toughening Brittle Bio‐P3HB with Synthetic P3HB of Engineered Stereomicrostructures

Z Zhang, EC Quinn… - Angewandte Chemie …, 2023 - Wiley Online Library
Abstract Poly (3‐hydroxybutyrate)(P3HB), a biologically produced, biodegradable natural
polyester, exhibits excellent thermal and barrier properties but suffers from mechanical …

Tuning the Morphology, Thermal Behavior, and Toughness of Poly(β-butyrolactone-co-β-valerolactone) Thermoplastics

A Pietrangelo, CR López-Barrón, MT DeRocco… - …, 2023 - ACS Publications
Mapping copolymer properties to composition and microstructure enriches our
understanding of how these features are correlated and establishes a pathway to tune the …