scholarly journals Triblock copolymer micelles as templates for preparation of mesoporous niobia thin films

2018 ◽  
Vol 992 ◽  
pp. 012037 ◽  
Author(s):  
R Georgiev ◽  
D Christova ◽  
L Todorova ◽  
B Georgieva ◽  
M Vasileva ◽  
...  
Author(s):  
Ginam Kim ◽  
W. Marsillo ◽  
M. Libera

The fact that block copolymers can assume a range of morphologies depending upon such variables as relative block length and molecular weight is now well known. In the case of poly(styrene)[PS]-poly(butadiene)[PB]-poly(styrene) (SBS) triblock copolymer, the morphologies range from spheres (roughly ~20% minor component), to cylinders (roughly 20%~35% minor component), to lamellae (roughly equal component fractions) Most recently, there has been increasing interest in transformations between morphologies by thermal annealing. This paper describes initial results studying the effect of solvent evaporation rate and post-casting annealing treatment on the morphology of SBS thin films.TEM specimens were prepared by solution casting electron transparent films. 50 μl of 0.1 wt% SBS (30% styrene, Mw=14,000, Scientific Polymer Products, Inc.) dissolved in toluene was deposited on a polished NaCl single crystal substrate placed in a small dish. After solvent evaporation the film was cut into small squares, floated from the salt in water, and each square was collected on a Cu grid.


RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20025-20034 ◽  
Author(s):  
Yuling Li ◽  
Sai Wang ◽  
Dandan Zhu ◽  
Yuling Shen ◽  
Baixiang Du ◽  
...  

Reversibly shell cross-linked micelles based on a lipoic acid (LA) decorated triblock copolymer poly(ethylene glycol)-b-poly(γ-benzyl-l-glutamate)-b-poly(l-phenylalanine) have been developed for efficient intracellular delivery of DOX.


2011 ◽  
Vol 7 (10) ◽  
pp. 3700-3707 ◽  
Author(s):  
K. Van Butsele ◽  
M. Morille ◽  
C. Passirani ◽  
P. Legras ◽  
J.P. Benoit ◽  
...  

2020 ◽  
Vol 196 ◽  
pp. 111334
Author(s):  
Xuedi Gao ◽  
Yujie Lu ◽  
Bin Wu ◽  
Jibin Miao ◽  
Peng Chen ◽  
...  

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