Borax Mediated Layer-by-Layer Self-Assembly of Neutral Poly(vinyl alcohol) and Chitosan

2009 ◽  
Vol 113 (27) ◽  
pp. 9137-9142 ◽  
Author(s):  
Uttam Manna ◽  
Satish Patil
RSC Advances ◽  
2015 ◽  
Vol 5 (130) ◽  
pp. 107370-107377 ◽  
Author(s):  
Mohamed Bahloul ◽  
Sébastien Pruvost ◽  
Etienne Fleury ◽  
Daniel Portinha ◽  
Aurélia Charlot

Layer by Layer (LbL) thin films stemming from the formation of stereocomplex between oligolactate with opposite chirality (OLLA and ODLA) covalently anchored onto poly(vinyl alcohol) (PVA) chains is described herein for the first time.


2016 ◽  
Vol 134 (9) ◽  
Author(s):  
Ling Su ◽  
Shengming Zhang ◽  
Guiquan Jiang ◽  
Jiuyin Pang ◽  
Di Wang ◽  
...  

2019 ◽  
Vol 553 ◽  
pp. 512-523 ◽  
Author(s):  
Hen Moshe Halamish ◽  
Jiří Trousil ◽  
Dmytro Rak ◽  
Kenneth D. Knudsen ◽  
Ewa Pavlova ◽  
...  

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1854 ◽  
Author(s):  
Kentaro Yoshida ◽  
Akane Yamaguchi ◽  
Hiroki Midorikawa ◽  
Toshio Kamijo ◽  
Tetsuya Ono ◽  
...  

Phenylboronic acid-bearing polyamidoamine dendrimer (PBA-PAMAM)/poly(vinyl alcohol) (PVA) multilayer films were prepared through the layer-by-layer (LbL) deposition of PBA-PAMAM solution and PVA solution. PBA-PAMAM/PVA films were constructed successfully through the formation of boronate ester bonds between the boronic acid moiety in PBA and 1,3-diol units in PVA. When the (PBA-PAMAM/PVA)5 films were immersed in rose bengal (RB) solution, RB was adsorbed onto the LbL films. The amount of RB adsorbed was higher in the LbL films immersed in acidic solution than in basic solution. The release of RB from the LbL films was also promoted in the basic solution, while it was suppressed in the acidic solution. The boronic acid ester is oxidized to phenol by hydrogen peroxide (H2O2) and the carbon-boron bond is cleaved, so that the (PBA-PAMAM/PVA)5 films can be decomposed by immersion in H2O2 solution. Therefore, when RB-adsorbed (PBA-PAMAM/PVA)5 films were immersed in H2O2 solution, the release of RB was moderately promoted when the solution was weakly acidic.


2008 ◽  
Vol 55-57 ◽  
pp. 33-36
Author(s):  
G.R. Mitchell ◽  
M. Belal ◽  
F.J. Davis ◽  
D.E. Elliott ◽  
M. Kariduraganavar ◽  
...  

We use a combination of microscopy, x-ray scattering and neutron scattering to show how structure develops in micro and nano-size polymer fibres prepared by electrospinning. The technique has been applied to a range of different polymers, an amorphous system (polystyrene), a crystallisable polymer (poly-ε-caprolactone), a composite systems (polyethylene oxide or poly vinyl alcohol containing polypyrrole) and consider the possibility of self assembly (gelatin).


2018 ◽  
Vol 66 (4) ◽  
pp. 368-374 ◽  
Author(s):  
Chihiro Takei ◽  
Yui Ohno ◽  
Tomohiro Seki ◽  
Ryotaro Miki ◽  
Toshinobu Seki ◽  
...  

2014 ◽  
Vol 293 (4) ◽  
pp. 1043-1048 ◽  
Author(s):  
Keisuke Suwa ◽  
Munenari Nagasaka ◽  
Satoshi Niina ◽  
Yuya Egawa ◽  
Toshinobu Seki ◽  
...  

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