Low Molecular Weight Linear Polyethylenimine-b-poly(ethylene glycol)-b-polyethylenimine Triblock Copolymers:  Synthesis, Characterization, and in Vitro Gene Transfer Properties

2005 ◽  
Vol 6 (6) ◽  
pp. 3440-3448 ◽  
Author(s):  
Zhiyuan Zhong ◽  
Jan Feijen ◽  
Martin C. Lok ◽  
Wim E. Hennink ◽  
Lane V. Christensen ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Gene Transfer ◽  
Ethylene Glycol ◽  
Triblock Copolymers ◽  
Low Molecular Weight ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Linear Polyethylenimine ◽  
Transfer Properties

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.

Plasticization of poly(lactide) with blends of tributyl citrate and low molecular weight poly(d,l-lactide)-b-poly(ethylene glycol) copolymers

2009 ◽  
Vol 45 (10) ◽  
pp. 2839-2848 ◽  
Author(s):  
Yahia Lemmouchi ◽  
Marius Murariu ◽  
Ana Margarida Dos Santos ◽  
Allan J. Amass ◽  
Etienne Schacht ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Ethylene Glycol ◽  
Low Molecular Weight ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Star-Shaped Poly(ethylene glycol)-block-polyethylenimine Copolymers Enhance DNA Condensation of Low Molecular Weight Polyethylenimines

2002 ◽  
Vol 3 (5) ◽  
pp. 926-936 ◽  
Author(s):  
Holger Petersen ◽  
Klaus Kunath ◽  
Alison L. Martin ◽  
Snjezana Stolnik ◽  
Clive J. Roberts ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Ethylene Glycol ◽  
Dna Condensation ◽  
Low Molecular Weight ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Enhanced Resolution of Low Molecular Weight Poly(Ethylene Glycol) in Nanopore Analysis

2014 ◽  
Vol 86 (24) ◽  
pp. 11946-11950 ◽  
Author(s):  
Chan Cao ◽  
Yi-Lun Ying ◽  
Zhen Gu ◽  
Yi-Tao Long
Keyword(s):  
Molecular Weight ◽  
Ethylene Glycol ◽  
Low Molecular Weight ◽  
Poly Ethylene Glycol ◽  
Enhanced Resolution ◽  
Poly Ethylene
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