Aggregation Behavior of PEO-PPO-PEO Tri-Block Copolymer (Pluronic®L64) in Nonionic Surfactant Additives Environment

2014 ◽  
Vol 51 (3) ◽  
pp. 274-281 ◽  
Author(s):  
Rakesh K. Sharma ◽  
Unnati Shah
Keyword(s):  
Block Copolymer ◽  
Nonionic Surfactant ◽  
Aggregation Behavior

Aggregation behavior of pH- and thermo-responsive block copolymer protected gold nanoparticles

2014 ◽  
Vol 292 (7) ◽  
pp. 1657-1664 ◽  
Author(s):  
Junbo Li ◽  
Wenlan Wu ◽  
Chen Han ◽  
Shijie Zhang ◽  
Huiyun Zhou ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Block Copolymer ◽  
Aggregation Behavior

Rheological Study of the Shape Transition of Block Copolymer−Nonionic Surfactant Mixed Micelles

Langmuir ◽  
2007 ◽  
Vol 23 (22) ◽  
pp. 11000-11006 ◽  
Author(s):  
David Löf ◽  
Karin Schillén ◽  
Miguel F. Torres ◽  
Alejandro J. Müller
Keyword(s):  
Block Copolymer ◽  
Nonionic Surfactant ◽  
Mixed Micelles ◽  
Shape Transition ◽  
Rheological Study

Star-Shaped Poly (Γ-Caprolactone-b-Ethylene Glycol): Synthesis, Characterization and Aggregation Behavior

2007 ◽  
Vol 342-343 ◽  
pp. 725-728
Author(s):  
Yu Jiang Fan ◽  
Jie Liang ◽  
Guo Ping Chen ◽  
Tetsuya Tateishi ◽  
Zhong Wei Gu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Block Copolymer ◽  
Ethylene Glycol ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Aggregation Behavior ◽  
Step Process ◽  
Structure Factors ◽  
Aggregation Behaviors ◽  
Linear Block

Linear and Star-shaped PCL-b-PEG copolymers were synthesized through a two step process, including the first step to synthesize the star-shaped PCL through ring-opening polymerization of Γ-caprolactone initiated from multi-functional alcohol under the existence of tin(II) ethylhexanoate [Sn(Oct)2] catalyst, and the following step to couple the obtained star-shaped PCL with PEG segments using bi-functional linker. The structure of the polymers was confirmed by IR, NMR, GPC, et al. The aggregation behaviors of the star-shape copolymers were compared with that of the linear block copolymer with corresponding molecular weight of each arm, and the influences of structure factors were discussed.

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