Results 31 to 40 of about 31,001 (259)

Unveiling the Enzymatic Degradation Process of Biobased Thiophene Polyesters

Frontiers in Chemistry, 2021
In the past 20 years, scientific research focused on the identification of valid alternatives to materials of fossil origin, in particular, related to biobased polymers. Recently, the efforts led to the synthesis of thiophene-based polymers (TBPs), a new
Federico A. Bertolini, Michelina Soccio, Simone Weinberger, Giulia Guidotti, Massimo Gazzano, Georg M. Guebitz, Georg M. Guebitz, Nadia Lotti, Alessandro Pellis, Alessandro Pellis, Alessandro Pellis   +10 more
doaj   +1 more source

Sugar-based bicyclic monomers for aliphatic polyesters: a comparative appraisal of acetalized alditols and isosorbide

Designed Monomers and Polymers, 2017
Three series of polyalkanoates (adipates, suberates and sebacates) were synthesized using as monomers three sugar-based bicyclic diols derived from D-glucose (Glux-diol and isosorbide) and D-mannose (Manx-diol).
Elena Zakharova, Antxon Martínez de Ilarduya, Salvador León, Sebastián Muñoz-Guerra   +3 more
doaj   +1 more source

Machine Learning for the Optimization of the Bioplastics Design

Macromol
Biodegradable polyesters have gained attention due to their sustainability benefits, considering the escalating environmental challenges posed by synthetic polymers.
Neelesh Ashok, Pilar Garcia-Diaz, Marta E. G. Mosquera, Valentina Sessini   +3 more
doaj   +1 more source

Poly(ethylene glycol)-b-poly(1,3-trimethylene carbonate) Amphiphilic Copolymers for Long-Acting Injectables: Synthesis, Non-Acylating Performance and In Vivo Degradation

Molecules, 2021
This article presents the evaluation of diblock and triblock poly(ethylene glycol)-b-poly(1,3-trimethylene carbonate) amphiphilic copolymers (PEG-PTMCs) as excipients for the formulation of long-acting injectables (LAIs).
Silvio Curia, Feifei Ng, Marie-Emérentienne Cagnon, Victor Nicoulin, Adolfo Lopez-Noriega   +4 more
doaj   +1 more source

PROP: an in situ cascade polymerization method for the facile synthesis of polyesters

, 2017
We present here an in situ cascade polycondensation-coupling ring-opening polymerization (PROP) method for the facile synthesis of polyesters with relatively high molecular weights that are hard to synthesize by traditional condensation polymerization ...
Li, He, Jiali Gu, Xiaohong Li, Wang, Lian, He Li, Gu, Jiali, Yongjin Li, Li, Yongjin, Xiaoming Yang, Zhu, Xiang, Li, Xiaohong, Lian Wang, Tu, Yingfeng, Yingfeng Tu, Yang, Xiaoming, Xiang Zhu   +15 more
core   +1 more source

Recent progress of heterocycle ring‐opening (co)polymerization for the synthesis of sequence‐controlled block polyesters and polycarbonates

Smart Molecules
Aliphatic polyesters and polycarbonates are among the promising sustainable polymers, which exhibit unique degradability and chain‐chain interactions owing to their heterofunctionality.
Hongyu Zhao, Chenyang Hu, Xuan Pang, Xuesi Chen   +3 more
doaj   +1 more source

Strategies for Enhancing Polyester-Based Materials for Bone Fixation Applications

Molecules, 2021
Polyester-based materials are established options, regarding the manufacturing of bone fixation devices and devices in routine clinical use. This paper reviews the approaches researchers have taken to develop these materials to improve their mechanical ...
Raasti Naseem, Charalampos Tzivelekis, Matthew J. German, Piergiorgio Gentile, Ana M. Ferreira, Kenny Dalgarno   +5 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Effects of Mg on Microstructure and Solidification of a Hypereutectic Zn–8 wt.%Al Alloy

Advanced Engineering Materials, EarlyView.
An appreciable set of results involving thermal data, microstructure, chemical composition, and microstructural growth laws is reported for ZnAlMg alloys. Such results demonstrate that ZnAlMg alloys have high potential for applications in automotive self‐lubricating components, batteries, and electrical systems.
Raí B. de Sousa, Jeverton L. Paixão, Daylla S. Silva, Bruno S. Sobral, Mucio D. de Medeiros, José E. Spinelli, Bismarck L. Silva   +6 more
wiley   +1 more source

Correlation of chemical structure and distensibility of polyesters. [PDF]

, 1964
Maleic anhydride and fumaric acid are important raw materials for the manufacture of unsaturated polyesters. Unsaturated polyesters are the esterification products of unsaturated dibasic acids and polyvalent alcohols, polymerized to a high molecular ...
Bhimani, Nitin Jhaverbhai
core   +1 more source