The influence of the poly(ethylene glycol) on the mean activity coefficients of NaCl aqueous solutions. The application of the MSA and HNC method

2018 ◽  
Vol 270 ◽  
pp. 40-45 ◽  
Author(s):  
Miha Lukšič ◽  
Ema Slejko ◽  
Barbara Hribar-Lee
Keyword(s):  
Ethylene Glycol ◽  
Aqueous Solutions ◽  
Activity Coefficients ◽  
Poly Ethylene Glycol ◽  
The Mean ◽  
Poly Ethylene ◽  
Mean Activity Coefficients

Microporous Bio-Membrane Materials Based on High Molecular Weight Polylactide and Low Molecular Weight Poly(ethylene glycol)

2012 ◽  
Vol 567 ◽  
pp. 123-126
Author(s):  
Teng Fei Shen ◽  
Man Geng Lu ◽  
Li Yan Liang
Keyword(s):  
Molecular Weight ◽  
Ethylene Glycol ◽  
High Weight ◽  
Low Molecular Weight ◽  
Poly Ethylene Glycol ◽  
Degradation Rates ◽  
Degradation Behaviors ◽  
The Mean ◽  
Poly Ethylene ◽  
Lower Glass Transition Temperature

In this work, microporous membrane biomaterials based on high weight molecular polylactide (PLA) and low molecular weight poly(ethylene glycol) (PEG) using rapid solvent evaporation method were prepared and investigated. The effect of PEG segments added on the thermal and degradation behaviors was studied. According to the results, produced PLA/PEG biomaterial has lower glass transition temperature (Tg)in comparison with neat PLA. It was also found that the degradation rates of the PLA/PEG biomaterials were significantly increased with adding of PEG, which explained by increasing hydrophilic groups. For better porous fixation, CL-blocked polyisocyanate (CL-bp), which was synthesized from reaction of isophorone diisocyanate (IPDI) with dimethylol propionic acid (DMPA) and Trimethylolpropane (TMP) followed by addition of caprolactam (CL), were introduced. The microporous forms were observed by the scanning electron microscope (SEM), which showed the mean diameters of prepared PLA/PEG microporous were around 10μm.

A2BA2Block Copolymers of Poly(N-isopropylacrylamide) (A) and Poly(ethylene glycol) (B): Synthesis and Thermal Gelation Properties of Aqueous Solutions

2010 ◽  
Vol 48 (2) ◽  
pp. 177-185 ◽  
Author(s):  
Mircea Teodorescu ◽  
Ioana Negru ◽  
Paul O. Stanescu ◽  
Constantin Drăghici ◽  
Anamaria Lungu ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Aqueous Solutions ◽  
Poly Ethylene Glycol ◽  
Thermal Gelation ◽  
Poly Ethylene

Volumetric study of aqueous solutions of poly(ethylene glycol) from 283.15 to 313.15 K and at 0.1 MPa

2003 ◽  
Vol 91 (4) ◽  
pp. 2685-2689 ◽  
Author(s):  
Raphael Da C. Cruz ◽  
Rosana J. Martins ◽  
M�rcio J. E. De M. Cardoso ◽  
Oswaldo E. Barcia
Keyword(s):  
Ethylene Glycol ◽  
Aqueous Solutions ◽  
Poly Ethylene Glycol ◽  
Volumetric Study ◽  
Poly Ethylene
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