Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Selective catalysis is used to prepare block copolyesters by combining ring-opening polymerization of lactones and ring-opening copolymerization of epoxides/anhydrides. By using a dizinc complex with mixtures of up to three different monomers and controlling the chemistry of the Zn-O(polymer chain) it is possible to select for a particular polymerization route and thereby control the composition of block copolyesters.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/jacs.5b04541 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Thermodynamic investigation of renewable block copolymers based on poly(lactic acid) and poly(ethylene azelate).
Soft Matter
August 2025
Department of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece.
We studied a recently synthesized series of diblock copolymers based on poly(ethylene azelate) (PEAz) and poly(lactic acid) (PLA), prepared ring-opening polymerization of L-lactide in the presence of low-molecular-weight PEAz (5 kg mol). The initial PEAz amount varied from 2.5 up to 20%.
View Article and Find Full Text PDFPhotocurable and 3D Printable Functional Polyesters to Engineer Elastomeric Scaffolds for Biomedical Applications.
Macromol Biosci
May 2025
Department of Biomedical Engineering, Henry M. Rowan College of Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, NJ, 08028, USA.
Photocurable functional block copolyesters are reported to engineer elastomeric scaffolds for biomedical applications. The polymer backbone is organized by soft and stiff blocks. The functional prepolymer is readily crosslinked by thiol-yne click chemistry under ulraviolet light in the presence of a photo-initiator to form a robust elastomer.
View Article and Find Full Text PDFEnhancing Mechanical Energy Absorption of Honeycomb and Triply Periodic Minimal Surface Lattice Structures Produced by Fused Deposition Modelling in Reusable Polymers.
Polymers (Basel)
April 2025
UNIDEMI, Research & Development Unit for Mechanical and Industrial Engineering, Department of Mechanical and Industrial Engineering, Nova School of Science and Technology, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal.
This study investigated the mechanical energy absorption properties of polymeric lattice structures fabricated using additive manufacturing. Existing studies have primarily focused on rigid or single-use materials, with limited attention given to flexible polymers and their behaviour under repeated compressive loading. Addressing this gap, the structures investigated in this study are manufactured using three flexible polymers-polyether block amide, thermoplastic polyurethane, and thermoplastic copolyester elastomer-to enhance the reusability performance.
View Article and Find Full Text PDFSynthesis of Poly(butylene adipate--terephthalate) with Branched Monomer for Biodegradable Copolyesters with Enhanced Processability and Rheological Properties.
ACS Omega
April 2025
Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
Poly(butylene adipate--terephthalate) (PBAT) is one of the most promising biodegradable copolyesters for addressing "white pollution" and has made significant progress in industrial production, particularly in packaging and mulching film applications. However, melt elasticity and the rapid biodegradation rate of linear PBAT limit the broader application. In this study, a series of novel PBAT copolyesters with a low content of branch units (1.
View Article and Find Full Text PDFFunctionalized Cyclic Poly(α-Hydroxy Acids) via Controlled Ring-Opening Polymerization of O-Carboxyanhydrides.
Angew Chem Int Ed Engl
June 2025
Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, Blacksburg, Virginia, 24061, USA.
Linear poly(α-hydroxy acids) are important degradable polymers, and they can be efficiently prepared by ring-opening polymerization of O-carboxyanhydrides with pendant functional groups. However, attempts to prepare cyclic poly(α-hydroxy acids) have been plagued by side reactions, including epimerization and uncontrolled intramolecular chain transfers or termination, that prevent the synthesis of high-molecular-weight stereoregular cyclic polyesters. Herein, we report a scalable method for the synthesis of high-molecular-weight (>100 kDa) stereoregular functionalized cyclic poly(α-hydroxy acids) by means of controlled polymerization of O-carboxyanhydrides using a catalytic system consisting of a lanthanum complex with a sterically bulky ligand and a manganese silylamide.
View Article and Find Full Text PDF