Functionalization of cellulose with epoxy groups via γ-initiated RAFT-mediated grafting of glycidyl methacrylate

Cellulose ◽  
2014 ◽  
Vol 21 (6) ◽  
pp. 4067-4079 ◽  
Author(s):  
Murat Barsbay ◽  
Yasko Kodama ◽  
Olgun Güven
Keyword(s):  
Glycidyl Methacrylate ◽  
Epoxy Groups

scholarly journals Noble metal binding on macroporous poly(GMA-co-EGDMA) modified with ethylenediamine

2004 ◽  
Vol 69 (6) ◽  
pp. 455-460 ◽  
Author(s):  
Aleksandra Nastasovic ◽  
Slobodan Jovanovic ◽  
Dragica Jakovljevic ◽  
Slavka Stankovic ◽  
Antonije Onjia
Keyword(s):  
Ethylene Glycol ◽  
Sorption Capacity ◽  
Metal Binding ◽  
Glycidyl Methacrylate ◽  
Sorption Rate ◽  
Glycol Dimethacrylate ◽  
Batch Experiments ◽  
Uptake Capacity ◽  
Epoxy Groups ◽  
Suspension Copolymerization

Macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), p(GME), was synthesized by suspension copolymerization and modified by reaction of the pendant epoxy groups with ethylenediamine. The sorption rate and capacity of themodified copolymer, p(GME)-en for Rh(III) Au(III) and Pt(IV) ions were determined in batch experiments under non-competitive conditions. The uptake of Rh(III) was faster than those ofAu(III) and Pt(IV). The sorption capacity for Pt(IV)was determined in the pHrange 0.9?6.0. The maximum Pt(IV) uptake capacity onto p(GME)-en at pH 5.5 was 1.30 mmol/g.

Glycidyl methacrylate-crosslinked fish swim bladder as a novel cardiovascular biomaterial with improved antithrombotic and anticalcification properties

2021 ◽  
pp. 088532822110542
Author(s):  
Meiling Li ◽  
Cheng Zheng ◽  
Binggang Wu ◽  
Kailei Ding ◽  
Shumang Zhang ◽  
...  
Keyword(s):  
Glycidyl Methacrylate ◽  
Platelet Adhesion ◽  
Ex Vivo ◽  
Carboxyl Groups ◽  
Swim Bladder ◽  
Subcutaneous Implantation ◽  
Porcine Pericardium ◽  
Epoxy Groups ◽  
Polymerization Method ◽  
Anticoagulant Property

At present, commercial artificial biological valves are mostly prepared by crosslinking bovine or porcine pericardia with glutaraldehyde. Swim bladder has similar components and lower immunogenicity compared to bovine or porcine pericardium. In this study, we used a glycidyl methacrylate (GMA)–based radical polymerization method to crosslink decellularized swim bladders. Amino and carboxyl groups in the swim bladder were reacted with epoxy groups on GMA to introduce carbon–carbon double bonds to the swim bladder. The results showed that the platelet adhesion of GMA-crosslinked swim bladders (GMA-SBs) decreased by 35%, as compared to that of glutaraldehyde-crosslinked swim bladders (GLUT-SBs). Moreover, the superior anticoagulant property was further verified by the ex vivo arteriovenous shunt assay. Meanwhile, the subcutaneous implantation in rats showed that GMA-SBs were able to effectively inhibit the calcification compared with GLUT-SBs. In conclusion, GMA-SBs showed improved antithrombotic and anticalcification properties compared to GLUT-SBs.

scholarly journals Rational synthesis of epoxy-functional spheres, worms and vesicles by RAFT aqueous emulsion polymerisation of glycidyl methacrylate

2020 ◽  
Vol 11 (39) ◽  
pp. 6343-6355
Author(s):  
Fiona L. Hatton ◽  
Matthew J. Derry ◽  
Steven P. Armes
Keyword(s):  
Diblock Copolymer ◽  
Glycidyl Methacrylate ◽  
Aqueous Emulsion ◽  
Mild Conditions ◽  
Emulsion Polymerisation ◽  
Epoxy Groups

The rational synthesis of epoxy-functional diblock copolymer nano-objects has been achieved by RAFT aqueous emulsion polymerisation of glycidyl methacrylate under mild conditions (50 °C, pH 7) to preserve the epoxy groups.

Synthesis of Hydrophilic Epoxy-Functionalized Films by UV-Initiated Copolymerization

2013 ◽  
Vol 785-786 ◽  
pp. 892-895
Author(s):  
Li Li ◽  
Min Feng ◽  
Jia Ting Zhu
Keyword(s):  
Glycidyl Methacrylate ◽  
Biological Species ◽  
Amino Group ◽  
Epoxy Acrylate ◽  
Functional Monomer ◽  
X Ray ◽  
Group Reaction ◽  
Facile Fabrication ◽  
Functionalized Films ◽  
Epoxy Groups

Bisphenol A based epoxy acrylate (BABEA), a commercial ultraviolet (UV)-curiable material, was introduced as a new manufacturing material for facile fabrication of epoxy-functionalized films through UV-initiated copolymerization using glycidyl methacrylate (GMA) as the functional monomer. X-ray photoelectron spectroscope (XPS) results indicated the existence of epoxy groups on the surface of the poly (BABEA-co-GMA), which allowed for binding protein through an epoxy-amino group reaction. The contact angel results indicated the poly (BABEA-co-MMA) is hydrophilic, which avoided nonspecific adsorption of biological species. Bovine serum albumin (BSA) was successfully immobilized on the poly (BABEA-co-GMA) films by using the introduced epoxy groups effectively. This makes it possible to extend the application of such films in the fields of bio-separations and bio-recognitions.

Functionalization of Porous Clay Heterostructures with Silane Coupling Agents

2017 ◽  
Vol 54 (2) ◽  
pp. 341-344
Author(s):  
Anda Ionelia Mihai (Voicu) ◽  
Sorina Alexandra Garea ◽  
Eugeniu Vasile ◽  
Cristina Lavinia Nistor ◽  
Horia Iovu
Keyword(s):  
Pore Volume ◽  
Total Pore Volume ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Porous Clay Heterostructures ◽  
Bet Analysis ◽  
Silane Coupling ◽  
Ftir Spectrometry ◽  
Textural Parameters ◽  
Epoxy Groups

The goal of this paper was to study the modification of porous clay heterostructures (PCHs) with various silane coupling agents. Two commercial coupling agents (3-aminopropyl-triethoxysilane (APTES) and 3-glycidoxypropyl-trimethoxysilane (GPTMS)) with different functional groups (amine and epoxy groups) were used as modifying agents for the PCHs functionalization. The functionalization of PCH with APTES and GPTMS was evaluated by Fourier transform infrared (FTIR) spectrometry, thermogravimetric analysis (TGA), X-Ray Diffractions (XRD) and BET Analysis. FTIR spectra of modified PCHs confirmed the presence of characteristic peaks of silane coupling agents. TGA results highlighted an increase of weight loss for the modified PCHs that was assigned to the degradation of silane coupling agents (APTES and GPTMS) attached to the PCHs. The XRD results showed that the structure of modified PCHs was influenced by the type of the silane coupling agent. The functionalization of PCHs with silane coupling agents was also confirmed by BET analysis. Textural parameters (specific surface area (SBET), total pore volume (Vt )) suggested that the modified PCHs exhibit lower values of SBET and a significant decrease of total pore volume than unmodified PCHs.

Reesterification of ethyl acetate by propanol catalysed by glycidyl methacrylate copolymers containing sulphonic acid groups

1981 ◽  
Vol 46 (8) ◽  
pp. 1941-1946 ◽  
Author(s):  
Karel Setínek
Keyword(s):  
Liquid Phase ◽  
Ethyl Acetate ◽  
Kinetic Study ◽  
Gas Phase ◽  
Nonlinear Regression ◽  
Kinetic Data ◽  
Glycidyl Methacrylate ◽  
Kinetic Equations ◽  
Methacrylate Copolymers ◽  
Styrene Divinylbenzene

A series of differently crosslinked macroporous 2,3-epoxypropyl methacrylate-ethylenedimethacrylate copolymers with chemically bonded propylsulphonic acid groups were used as catalysts for the kinetic study of reesterification of ethyl acetate by n-propanol in the liquid phase at 52 °C and in the gas phase at 90 °C. Analysis of kinetic data by the method of nonlinear regression for a series of equations of the Langmuir-Hinshelwood type showed that kinetic equations which describe best the course of the reaction are the same as for the earlier studied sulphonated macroporous styrene-divinylbenzene copolymers. Compared types of catalysts differ, however, in the dependence of their activity on the degree of crosslinking of the copolymer used.

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