TY - JOUR
T1 - Novel pH-sensitive poly(silamine) hydrogel microsphere possessing a stable skin layer
AU - Nagasaki, Yukio
AU - Luo, Lai Bin
AU - Tsuruta, Teiji
AU - Kataoka, Kazunori
PY - 2001/9/28
Y1 - 2001/9/28
N2 - New silicon-based polycationic microspheres, which consist of alternating 3,3-dimethyl-3-sila-pentamethylene and N,N′-diethylethylenediamine, were prepared. The deswelling of the poly(silamine) microspheres by means of pH-jump experiments revealed the formation of an extremely stable skin layer. The layer could be kept at the interface between particle core and skin layer and shows a significantly different chemical potential. This may be explained by a limited osmotic-pressure wave due to the high activation energy associated with the conformational changes.
AB - New silicon-based polycationic microspheres, which consist of alternating 3,3-dimethyl-3-sila-pentamethylene and N,N′-diethylethylenediamine, were prepared. The deswelling of the poly(silamine) microspheres by means of pH-jump experiments revealed the formation of an extremely stable skin layer. The layer could be kept at the interface between particle core and skin layer and shows a significantly different chemical potential. This may be explained by a limited osmotic-pressure wave due to the high activation energy associated with the conformational changes.
UR - https://www.scopus.com/pages/publications/0035538839
UR - https://www.scopus.com/pages/publications/0035538839#tab=citedBy
U2 - 10.1002/1521-3927(20011001)22:14<1124::AID-MARC1124>3.0.CO;2-4
DO - 10.1002/1521-3927(20011001)22:14<1124::AID-MARC1124>3.0.CO;2-4
M3 - Article
AN - SCOPUS:0035538839
SN - 1022-1336
VL - 22
SP - 1124
EP - 1127
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
IS - 14
ER -