One-step mild preparation of tough and thermo-reversible poly(vinyl alcohol) hydrogels induced by small molecules.

Chem Commun (Camb)

The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China.

Published: April 2021

To overcome shortcomings of the traditional freeze-thaw method for PVA hydrogel preparation, we develop a one-step mild method, which induces PVA crystallization to form hydrogels through small molecules containing hydroxyl and carboxyl groups. The obtained hydrogels showed high mechanical properties, untypical plasticity with short gelation time and repeatable sol-gel transformation.

Download full-text PDF

Source
http://dx.doi.org/10.1039/d1cc00578bDOI Listing

Publication Analysis

Top Keywords

one-step mild
8
small molecules
8
mild preparation
4
preparation tough
4
tough thermo-reversible
4
thermo-reversible polyvinyl
4
polyvinyl alcohol
4
alcohol hydrogels
4
hydrogels induced
4
induced small
4

Similar Publications

The single-atom skeletal editing technology is an efficient method for constructing molecular skeletons, which has broad coverage in synthetic chemistry. However, its potential in the preparation of energetic heterocyclic molecules is grossly underexplored. In this work, an unexpected one-step reaction for the synthesis of novel energetic molecules was discovered which combines single-atom skeletal editing, -dinitromethyl functionalization, and zwitterionization in one step.

View Article and Find Full Text PDF

Chondroitin sulfate (CS) is a structurally complex anionic polysaccharide widely used in medical, cosmetic and food applications. Enzymatic catalysis is an important strategy for synthesizing CS with uniform chain lengths and well-defined structures. However, the industrial application of glycosyltransferases is hindered by limitations such as low expression yields, poor stability, and challenges in reuse.

View Article and Find Full Text PDF

Adaptive alcohols-alcohols cross-coupling via TFA catalysis: access of unsymmetrical ethers.

BMC Chem

January 2025

The Affiliated Ganzhou Hospital, Jiangxi Medical College, Nanchang University, Ganzhou, 341000, Jiangxi, People's Republic of China.

Article Synopsis
  • Ethers are important organic compounds used in various industries, including pharmaceuticals and materials.
  • The study presents a method using TFA as a catalyst to efficiently create unsymmetrical ethers from alcohols and different oxygen nucleophiles under mild conditions.
  • This method shows high efficiency, with notable yields and practicality for large-scale production, demonstrating its potential for industrial applications.
View Article and Find Full Text PDF

Equipmentless point-of-care testing of dengue antibodies using ELISA and smartphones.

J Pharm Biomed Anal

January 2025

INTEC (Universidad Nacional del Litoral-CONICET), Predio CCT CONICET-Santa Fe, RN 168, Santa Fe S3000GLN, Argentina. Electronic address:

Infections with the dengue virus affect more than 100 million people every year. The infected can present a mild form of the disease or a severe form, which can, eventually, lead to death. Dengue prevails in tropical and subtropical regions, although increased incidence has been observed in the last years in tempered climates.

View Article and Find Full Text PDF

Reported herein is the synthesis of a novel chiral dicarboxylic ligand for Mn(II) and the application of the Mn complex to the highly enantio- and position-selective epoxidation of C═C under mild conditions, even with polyolefinic substrates. A stereomechanistic basis for asymmetric induction is suggested.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!