Formation of core-shell type nano-associates through electrostatic interaction between peptide and block copolymer with poly(ethylene glycol) segment

1996 ◽  
pp. 317-318
Author(s):  
Atsushi Harada ◽  
Kazunori Kataoka
Keyword(s):  
Block Copolymer ◽  
Ethylene Glycol ◽  
Electrostatic Interaction ◽  
Core Shell ◽  
Poly Ethylene Glycol ◽  
Shell Type ◽  
Poly Ethylene

scholarly journals Core–Shell Type Polystyrene Latex Possessing Reactive Poly(ethylene glycol) Brushes on the Surface for High Performance Immunodiagnostics

2002 ◽  
Vol 34 (12) ◽  
pp. 868-875 ◽  
Author(s):  
Ryutaro Ogawa ◽  
Yukio Nagasaki ◽  
Naoya Shibata ◽  
Hidenori Otsuka ◽  
Kazunori Kataoka
Keyword(s):  
Ethylene Glycol ◽  
High Performance ◽  
Polystyrene Latex ◽  
Core Shell ◽  
Poly Ethylene Glycol ◽  
Shell Type ◽  
Poly Ethylene

PS-b-PEG Block Copolymer for the Compatibility of the Electro Spun Fiber of PS/PEG Blend

2018 ◽  
Vol 14 (5) ◽  
pp. 410-415
Author(s):  
Minghui You ◽  
Qixiang Sun ◽  
Shuo Zhang ◽  
Jingsheng Liu
Keyword(s):  
Phase Separation ◽  
Block Copolymer ◽  
Ethylene Glycol ◽  
Crystallization Behavior ◽  
Core Shell ◽  
Poly Ethylene Glycol ◽  
The Core ◽  
Nano Fiber ◽  
Core Shell Structure ◽  
Poly Ethylene

Background: The electrospining of Poly (styrene)/poly(ethylene glycol) blend and prepared electrospun Poly (styrene)/poly(ethylene glycol) are the composite fibers. The Core-shell structured PS-PEG fibers were founded by polarized optical microscope after electrospinning, meanwhile, the mechanism of structure was also discussed. Methods: The Electro-spinning is a facile method to fabricate polymer fibers. The single-step process to fabricate poly (styrene)(PS)/poly(ethylene glycol)(PEG) polymer nano-fiber meshes had been investigated, respectively. The morphology and crystallization behavior of the blend were observed by polarized optical microscopy. Results: The clear phase separation of PEG encapsulating on the PS fiber surface, and the nano-fiber composed of a core-shell structure, furthermore, the core of PS with the shell of PEG were observed, respectively. To increase the compatibility of the PS/PEG blend, Poly (styrene)(PS)-b-poly(ethylene glycol)(PEG), synthesized via atom transfer radical polymerization (ATRP) was introduced. The addition of the PS-b-PEG block copolymer has no negative effect on the electro-spinning process. Conclusion: When the Block copolymer of PS-b-PEG as a compatibilizer was added into the PS/PEG blend, the homogeneous electrospun fibers without phase separation was obtained. The effect of PS-b-PEG block copolymer on electrospinning of PS/PEG blend was analyzed by evaluating the morphology and crystallization behavior of the electrospun fibers. Under polarized optical microscopy analyses suggest that, it can be found that the phase separation between PS and PEG disappears due to the introduction of the compatibilizer. Meanwhile, the core-shell structure of PEG/PS composite fiber was destroyed and PEG evenly dispersed in PS/PEG blend.

Clonazepam release from core-shell type nanoparticles of poly(ε-caprolactone)/poly(ethylene glycol)/poly(ε-caprolactone) triblock copolymers

2000 ◽  
Vol 200 (2) ◽  
pp. 231-242 ◽  
Author(s):  
Jae-Gon Ryu ◽  
Young-Il Jeong ◽  
In-Sook Kim ◽  
Jong-Hoon Lee ◽  
Jae-Woon Nah ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Triblock Copolymers ◽  
Core Shell ◽  
Poly Ethylene Glycol ◽  
Shell Type ◽  
Poly Ethylene
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