Surface engineering of cellulose nanocrystals via SI-AGET ATRP of glycidyl methacrylate and ring-opening reaction for fabricating self-healing nanocomposite hydrogels

Cellulose ◽  
2021 ◽  
Author(s):  
Chuanjie Jiang ◽  
Wenting Fan ◽  
Nan Zhang ◽  
Guangqi Zhao ◽  
Wenxiang Wang ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Ring Opening ◽  
Glycidyl Methacrylate ◽  
Surface Engineering ◽  
Self Healing ◽  
Aget Atrp ◽  
Nanocomposite Hydrogels ◽  
Ring Opening Reaction

Fabrication of color changeable CO2 sensitive nanofibers

2017 ◽  
Vol 8 (48) ◽  
pp. 7446-7451 ◽  
Author(s):  
Jiaojiao Shang ◽  
Shaojian Lin ◽  
Patrick Theato
Keyword(s):  
Ring Opening ◽  
Glycidyl Methacrylate ◽  
Ring Opening Reaction ◽  
Nucleophilic Ring Opening

A CO2 sensor was fabricated by attaching CO2-sensitive spiropyran groups onto versatile photo-crosslinked poly(glycidyl methacrylate) (PGMA) precursor nanofibers via a nucleophilic ring-opening reaction.

Eco-friendly extraction of cellulose nanocrystals from grape pomace and construction of self-healing nanocomposite hydrogels

Cellulose ◽  
2020 ◽  
Vol 27 (5) ◽  
pp. 2541-2553 ◽  
Author(s):  
Qichao Fan ◽  
Chuanjie Jiang ◽  
Wenxiang Wang ◽  
Liangjiu Bai ◽  
Hou Chen ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Grape Pomace ◽  
Self Healing ◽  
Nanocomposite Hydrogels ◽  
Construction Of Self

Surface Engineering of Porous Carbon for Self-Healing Nanocomposite Hydrogels by Mussel-Inspired Chemistry and PET-ATRP

2019 ◽  
Vol 11 (41) ◽  
pp. 38126-38135 ◽  
Author(s):  
Dechao Fan ◽  
Guanglin Wang ◽  
Anyao Ma ◽  
Wenxiang Wang ◽  
Hou Chen ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Surface Engineering ◽  
Self Healing ◽  
Nanocomposite Hydrogels

scholarly journals Selenonium Polyelectrolyte Synthesis through Post-Polymerization Modifications of Poly (Glycidyl Methacrylate) Scaffolds

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2685
Author(s):  
Taejun Eom ◽  
Anzar Khan
Keyword(s):  
Ethylene Glycol ◽  
Ring Opening ◽  
Glycidyl Methacrylate ◽  
Ambient Conditions ◽  
Poly Ethylene Glycol ◽  
Ring Opening Reaction ◽  
Methacrylate Monomer ◽  
Poly Ethylene ◽  
Alkylation Reactions ◽  
Nucleophilic Ring Opening

Atom transfer radical polymerization of glycidyl methacrylate monomer with poly(ethylene glycol)-based macroinitiators leads to the formation of reactive block copolymers. The epoxide side-chains of these polymers can be subjected to a regiospecific base-catalyzed nucleophilic ring-opening reaction with benzeneselenol under ambient conditions. The ß-hydroxy selenide linkages thus formed can be alkylated to access polyselenonium salts. 77Se-NMR indicates the formation of diastereomers upon alkylation. In such a manner, sequential post-polymerization modifications of poly(glycidyl methacrylate) scaffolds via selenium-epoxy and selenoether alkylation reactions furnish practical access to poly(ethylene glycol)-based cationic organoselenium copolymers.

scholarly journals Nanocomposite Hydrogels Enhanced by Cellulose Nanocrystals Stabilized Pickering Emulsions with Self-Healing Performance in Subzero Environment

2021 ◽  
Author(s):  
Qichao Fan ◽  
Bencai Lin ◽  
Yu Nie ◽  
Qing Sun ◽  
Wenxiang Wang ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Linseed Oil ◽  
Continuous Phase ◽  
Binary Solvents ◽  
Subzero Temperature ◽  
Self Healing ◽  
Pickering Emulsions ◽  
Nanocomposite Hydrogels ◽  
Water Glycerol ◽  
Healing Agent

Abstract Nowadays, hydrogels as flexible materials have attracted considerable attention in frontier fields such as wearable electronic devices, soft actuators and robotics. However, most hydrogels use water as matrix will inevitably freeze at subzero and damage in severe environment, which greatly reducing their service life and practical value. Herein, nanocomposite hydrogels with self-healing performance at subzero temperatures were proposed by introducing binary water-glycerol continuous phase and dual self-healing interactions. The efficacy of binary solvents was emphasized in preventing formation of ice crystals, enhancing flexible and self-healing abilities of hydrogels in subzero environment. Particularly, linseed oil (LO) as healing agent was effectively loaded in Pickering droplets by cellulose nanocrystals (CNCs). Due to external healing agent and non-covalent bonding, hydrogels showed good self-healing performance at subzero temperature (the healing efficiency could be up to 80.1% for 12 h at -20 ℃). Thus, the designed hydrogels demonstrated multifunctional properties to overcome adverse conditions, which greatly elevated their durability and practicality.

scholarly journals Evaluation of Poly(Glycidyl Methacrylate) Nanocoating for Chiral Separation with Glu-β-CD as Chiral Selector in Capillary Electrophoresis

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Jin Xu ◽  
Xuecheng Sun ◽  
Xiaodong Sun ◽  
Ye Lu
Keyword(s):  
Capillary Electrophoresis ◽  
Chiral Separation ◽  
Ring Opening ◽  
Glycidyl Methacrylate ◽  
Chiral Selector ◽  
Separation Performance ◽  
Basic Drugs ◽  
Optimal Conditions ◽  
Simple Ring ◽  
Ring Opening Reaction

In this paper, a capillary coated with poly(glycidyl methacrylate) nanoparticles (PGMA NPs) was prepared and applied to construct a capillary electrophoresis (CE) enantioseparation system with glucosyl-β-cyclodextrin (Glu-β-CD) as a chiral selector. The PGMA NP coating can be easily introduced through a simple ring-opening reaction. Two basic drugs were used as models to evaluate the separation performance of the PGMA coating. Under the optimal conditions selected, the separation of the two enantiomers was obtained.

Self-healing nanocomposite hydrogels based on modified cellulose nanocrystals by surface-initiated photoinduced electron transfer ATRP

Cellulose ◽  
2019 ◽  
Vol 26 (9) ◽  
pp. 5305-5319 ◽  
Author(s):  
Liangjiu Bai ◽  
Xinyan Jiang ◽  
Zhixiang Sun ◽  
Zhaoxia Pei ◽  
Anyao Ma ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Cellulose Nanocrystals ◽  
Photoinduced Electron Transfer ◽  
Self Healing ◽  
Nanocomposite Hydrogels ◽  
Modified Cellulose

Self-healing and toughness cellulose nanocrystals nanocomposite hydrogels for strain-sensitive wearable flexible sensor

2021 ◽  
Vol 179 ◽  
pp. 324-332
Author(s):  
Zhaoxia Pei ◽  
Zhiwei Yu ◽  
Mengnan Li ◽  
Liangjiu Bai ◽  
Wenxiang Wang ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Self Healing ◽  
Flexible Sensor ◽  
Nanocomposite Hydrogels
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