Synthesis, characterization, and evaluation of carboxyl-terminated poly(ethylene glycol) adipate-modified epoxy networks: Effect of molecular weight

2006 ◽  
Vol 103 (3) ◽  
pp. 1723-1730 ◽  
Author(s):  
M. Murali ◽  
D. Ratna ◽  
A. B. Samui ◽  
B. C. Chakraborty
Keyword(s):  
Molecular Weight ◽  
Ethylene Glycol ◽  
Glycol Adipate ◽  
Poly Ethylene Glycol ◽  
Epoxy Networks ◽  
Ethylene Glycol Adipate ◽  
Poly Ethylene ◽  
Modified Epoxy

Polymorphism in poly (Ethylene glycol adipate)

1967 ◽  
Vol 9 (8) ◽  
pp. 1880-1888 ◽  
Author(s):  
B.Ya. Teitel'baum ◽  
N.A. Palikhov ◽  
L.I. Maklakov ◽  
N.P. Anoshina ◽  
I.O. Murtazina ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Glycol Adipate ◽  
Poly Ethylene Glycol ◽  
Ethylene Glycol Adipate ◽  
Poly Ethylene

Alternative polymer precipitants for protein crystallization

2010 ◽  
Vol 43 (4) ◽  
pp. 737-742 ◽  
Author(s):  
Tereza Skálová ◽  
Jarmila Dušková ◽  
Jindřich Hašek ◽  
Petr Kolenko ◽  
Andrea Štěpánková ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Ethylene Glycol ◽  
Protein Crystallization ◽  
Glycol Adipate ◽  
Poly Ethylene Glycol ◽  
Ph Values ◽  
Ethylene Glycol Adipate ◽  
Acid Sodium Salt ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

A set of 16 inexpensive and commercially available polymer precipitants were tested for protein crystallization. Eight of them were found suitable: polyethylene glycol dimethyl ether of molecular weight (MW) 500, 1000 and 2000; di[poly(ethylene glycol)] adipate, MW 900; poly(ethylene glycol-ran-propylene glycol), MW 2500 and 12000; poly(acrylic acid) sodium salt, MW 2100; and polyethylene glycol methyl ether methacrylate, MW 1100. Two new crystallization screens, PolyA and PolyB, were formulated using these eight polymers, each containing 96 solutions – four polymers in combination with 24 common salts and buffers, covering pH values from 4.5 to 9.0. The screens were tested on 29 proteins, 21 of which were crystallized. The tests confirmed the applicability of the eight polymers as precipitants for protein crystallization.

Amine terminated poly(ethylene glycol) benzoate modified epoxy networks

2005 ◽  
Vol 34 (1) ◽  
pp. 4-11 ◽  
Author(s):  
B.C. Samanta ◽  
T. Maity ◽  
S. Kar ◽  
A.K. Banthia
Keyword(s):  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Epoxy Networks ◽  
Poly Ethylene ◽  
Modified Epoxy

Synthesis and Properties of Unsaturated Poly(Urethane-Imide)s

2003 ◽  
Vol 15 (3) ◽  
pp. 291-299 ◽  
Author(s):  
Stefan Oprea
Keyword(s):  
Carbon Dioxide ◽  
Molecular Weight ◽  
Maleic Anhydride ◽  
Glycol Adipate ◽  
Poly Ethylene Glycol ◽  
Thermal Stabilities ◽  
Flexible Films ◽  
Methylene Diphenyl Diisocyanate ◽  
Ethylene Glycol Adipate ◽  
Poly Ethylene

Unsaturated poly(urethane-imide)s were prepared by the reaction of unsaturated polyurethane prepolymers with maleic anhydride. The polyurethane prepolymers were synthesized by the reaction of 4,4′-methylene diphenyl diisocyanate (MDI) with unsaturated polyesters having a molecular weight of about 500 or with a mixture of unsaturated and saturated polyesters having a molecular weight of about 2000. The unsaturated polyurethane prepolymers reacted with maleic anhydride until the evolution of carbon dioxide ceased to yield unsaturated poly(urethane-imide)s. These polymers exhibited improved solubility in organic solvents and formed flexible films showing fairly good stress-strain properties. Compared to conventional polyurethanes based on MDI and poly(ethylene glycol adipate) these polymers exhibited better thermal stabilities due to the presence of the imide groups.

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