Amphiphilic core–shell nanospheres obtained by intramicellar shell crosslinking of polymer micelles with poly(ethylene oxide) linkers

1998 ◽  
pp. 1415-1416 ◽  
Author(s):  
Haiyong Huang ◽  
Karen L. Wooley ◽  
Haiyong Huang ◽  
Edward E. Remsen
Keyword(s):  
Ethylene Oxide ◽  
Core Shell ◽  
Polymer Micelles ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

scholarly journals Effect of Molecular Architecture on Associating Behavior of Star-Like Amphiphilic Polymers Consisting of Plural Poly(ethylene oxide) and One Alkyl Chain

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 460
Author(s):  
Daisuke Kugimoto ◽  
Aoi Taniguchi ◽  
Masaki Kinoshita ◽  
Isamu Akiba
Keyword(s):  
Ethylene Oxide ◽  
Average Molecular Weight ◽  
Amphiphilic Polymers ◽  
Hydrophobic Core ◽  
Molecular Architecture ◽  
Polymer Micelles ◽  
The Core ◽  
X Ray Scattering ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Associating behavior of star-like amphiphilic polymers consisting of two or three poly(ethylene oxide) (PEO) chains and one stearyl chain (C18) was investigated. Although the aggregation number (Nagg) of linear analogue of amphiphilic polymers monotonically decreased with increasing number-average molecular weight of PEO (Mn,PEO), the Nagg of micelles of star-like amphiphilic polymers with Mn,PEO = 550 g/mol was smaller than that with Mn,PEO = 750 g/mol, whereas that with Mn,PEO ≥ 750 g/mol showed general Mn,PEO dependence. Small-angle X-ray scattering analyses revealed that the occupied area of one PEO chain on the interface between hydrophobic core and corona layer in the micelles of star-like polymers was much narrower than that in the linear amphiphilic polymers. This result indica ted the PEO chains of star-like polymers partially took unfavorable conformation near the core–corona interface in polymer micelles. The effect of local conformation of PEO chains near the interface on the associating behavior became significant as Mn,PEO decreased. Therefore, in polymer micelles of star-like amphiphilic polymers containing PEO with Mn,PEO = 550 g/mol, the enlargement of occupied area of PEO on the core–corona interface should be caused to avoid the formation of unfavorable conformations of partial PEO chains, resulting in a decrease in Naggs.

Electrospun Core−Shell Structure Nanofibers from Homogeneous Solution of Poly(ethylene oxide)/Chitosan

2009 ◽  
Vol 42 (14) ◽  
pp. 5278-5284 ◽  
Author(s):  
Jian-Feng Zhang ◽  
Dong-Zhi Yang ◽  
Fei Xu ◽  
Zi-Ping Zhang ◽  
Rui-Xue Yin ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Shell Structure ◽  
Homogeneous Solution ◽  
Core Shell ◽  
Poly Ethylene Oxide ◽  
Core Shell Structure ◽  
Poly Ethylene

Natural Polyampholyte-Based Core−Shell Nanoparticles withN-Carboxyethylchitosan-Containing Core and Poly(ethylene oxide) Shell

2009 ◽  
Vol 10 (4) ◽  
pp. 838-844 ◽  
Author(s):  
Rosica Mincheva ◽  
François Bougard ◽  
Dilyana Paneva ◽  
Magali Vachaudez ◽  
Nevena Manolova ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Oxide Shell ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Core Shell Nanoparticles

Colloidal crystals of core–shell type spheres with poly(styrene) core and poly(ethylene oxide) shell

2007 ◽  
Vol 56 (1-2) ◽  
pp. 231-235 ◽  
Author(s):  
Junichi Okamoto ◽  
Hiroshi Kimura ◽  
Akira Tsuchida ◽  
Tsuneo Okubo ◽  
Koichi Ito
Keyword(s):  
Ethylene Oxide ◽  
Colloidal Crystals ◽  
Oxide Shell ◽  
Core Shell ◽  
Shell Type ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene
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