High-Yield Luminescence from Cadmium Sulfide Nanoclusters Supported in a Poly(ethylene glycol) Oligomer

Langmuir ◽  
2000 ◽  
Vol 16 (7) ◽  
pp. 3561-3563 ◽  
Author(s):  
Vlasoula Bekiari ◽  
Panagiotis Lianos
Keyword(s):  
Ethylene Glycol ◽  
Cadmium Sulfide ◽  
High Yield ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Poly(ethylene glycol): an Alternative Solvent for the Synthesis of Cyclic Carbonate from Vicinal Halohydrin and Carbon Dioxide

2009 ◽  
Vol 62 (8) ◽  
pp. 917 ◽  
Author(s):  
Jing-Lun Wang ◽  
Liang-Nian He ◽  
Xiao-Yong Dou ◽  
Fang Wu
Keyword(s):  
Carbon Dioxide ◽  
Ethylene Glycol ◽  
Reaction Medium ◽  
Cyclic Carbonate ◽  
High Yield ◽  
Cyclic Carbonates ◽  
Poly Ethylene Glycol ◽  
Potential Applications ◽  
Ready Availability ◽  
Poly Ethylene

Poly(ethylene glycol) (PEG) in this work proved to be an efficient reaction medium for the reaction of vicinal halohydrin with carbon dioxide in the presence of a base to synthesise cyclic carbonates. Notably, PEG-400 as an environmentally friendly solvent exhibits a unique influence on reactivity compared with conventional organic solvents. Various cyclic carbonates were prepared in high yield employing this protocol. The process presented here has potential applications in the industrial production of cyclic carbonates because of its simplicity, cost benefits, ready availability of starting materials, and mild reaction conditions.

Synthesis of curdlan-graft-poly(ethylene glycol) and formulation of doxorubicin-loaded core–shell nanoparticles

2012 ◽  
Vol 27 (1) ◽  
pp. 3-17 ◽  
Author(s):  
Benjamin C. Lehtovaara ◽  
Mohit S. Verma ◽  
Frank X. Gu
Keyword(s):  
Ethylene Glycol ◽  
Graft Copolymer ◽  
Fickian Diffusion ◽  
High Yield ◽  
Core Shell ◽  
Hydroxyl Groups ◽  
Poly Ethylene Glycol ◽  
Shell Nanoparticles ◽  
Hemolysis Assay ◽  
Poly Ethylene

A new core–shell nanoparticle containing the chemotherapeutic drug doxorubicin was formulated via amphiphilic graft copolymer self-assembly using curdlan- graft-poly(ethylene glycol) (curdlan -g-PEG). The graft copolymer was synthesized through the dicyclohexylcarbodiimide ester linkage of carboxylated PEG to the hydroxyl groups of the curdlan backbone. The nanoparticles were 109.9 nm in size and encapsulated doxorubicin in high yield (4%–5% wt/wt). The nanoparticles also controlled the release of doxorubicin over 24 h with a release profile that followed a Fickian diffusion model. The biocompatibility of curdlan- g-PEG was confirmed by hemolysis assay. This is the first nanoparticle formulated using the hydrophobicity of curdlan for concealing the immunomodulatory potential of curdlan within the core.

Soluble polymer supported synthesis of a monosubstituted tetraaryl porphyrin

1989 ◽  
Vol 67 (3) ◽  
pp. 411-416 ◽  
Author(s):  
Y. Takahashi ◽  
J. E. Guillet ◽  
M. A. Winnik
Keyword(s):  
Molecular Weight ◽  
Ethylene Glycol ◽  
High Yield ◽  
Separation And Purification ◽  
Poly Ethylene Glycol ◽  
Soluble Polymer ◽  
New Synthesis ◽  
Synthesis Strategy ◽  
Polymer Supported ◽  
Poly Ethylene

A new synthesis of monosubstituted tetraarylporphines is described based upon the soluble polymer supported synthesis strategy. Low molecular weight poly(ethylene glycol) is chloromethylated at both ends. These ends are then used to build up the polymer-bound ether of 5-(4′-hydroxymethyl)-10,15,20-tritolylporphine, which, after purification of the polymer, can be cleaved in high yield with TiCl4. While the method offers useful conveniences, such as the ease of separation and purification of the desired material, the overall yield is low: 100 mg from 40 g of polymer. Oligomerization of the polymer during chloromethylation increases the polymer molecular weight and thereby decreases the number of end groups per gram of polymer. Keywords: porphyrin, tetraaryl, monosubstituted poly(ethylene glycol) oligomerization, polymer-supported synthesis.

PIEZOELECTRIC PROPERTIES OF POLY(3-HYDROXYBUTYRATE-CO-3-HEDROXYBUTYRATE)-CO-POLY(ETHYLENE GLYCOL) PRODUCED BY CONTROLLED MICROBIOLOGICAL BIOSYNTHESIS

2019 ◽  
Vol 10 (10) ◽  
Author(s):  
Anton Bonartsev ◽  
Vera Voinova ◽  
Elizaveta Akoulina ◽  
Andrey Dudun ◽  
Irina Zharkova ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Piezoelectric Properties ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Thermosensitives hydrogels based on poly (ethylene glycol): I. Synthesis, characterization and release

2007 ◽  
Vol 32 (5) ◽  
pp. 431-446 ◽  
Author(s):  
Tahar Bartil ◽  
Mahmoud Bounekhel ◽  
Cedric Calberg ◽  
Robert Jerome
Keyword(s):  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene
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