TY - JOUR
T1 - Preparation of LB Built-up Films of Polymerizable Amphiphile with Sodium Sulfonate Group and Their Surface Properties
AU - Oda, Takashi
AU - Takahara, Atsushi
AU - Uchida, Motoko
AU - Kajiyama, Tisato
AU - Takahara, Atsushi
AU - Uchida, Motoko
AU - Kajiyama, Tisato
PY - 1987
Y1 - 1987
N2 - A new amphiphile with a sodium sulfonate group and two polymerizable alkyl chains, sodium 1,2-bis [16-(acryloyloxy)hexadeeyloxycarbonyl]ethanesulfonate (2 AC16SNa), was synthesized. 2 AC16SNa monolayer on the pure water surface was built-up on the polymeric substrate film (polystyrene or polyethylene) successively by applying Langmuir-Blodgett method by use of oleic acid as piston oil. The monolayer was not built-up on the polymeric substrate when the substrate moved down into the water but was built-up when it moved up from the water. From the area variation of the 2 AC10SNa monolayer on the water surface during the built-up process, the film must be built-up as a Z-membrane. However, it became apparent from X-ray study that the finally obtained built-up film was Y- membrane. 2 AC16SNa monomers in the built-up film were polymerized by UV-irradiation. The X-ray pattern of the polymerized 2 AC16SNa built-up film was similar to that of the monomer film. This result indicates that polymerization proceeds, maintaining highly oriented bimolecular structure. When UV-irradiation was carried out in water, the surface of the polymerized built-up film was very hydrophillic. This indicates that sodium sulfonate groups are highly oriented on the built-up film surface. Blood compatibility of the polymerized built-up film was evaluated from the interaction with human blood platelets. The number of adhered and deformed platelets on the built-up film surface was less than that of the polyethylene surface which was used as a substrate, and almost comparable with that of the poly(urethane-urea) surface which shows relatively excellent blood compatibility.
AB - A new amphiphile with a sodium sulfonate group and two polymerizable alkyl chains, sodium 1,2-bis [16-(acryloyloxy)hexadeeyloxycarbonyl]ethanesulfonate (2 AC16SNa), was synthesized. 2 AC16SNa monolayer on the pure water surface was built-up on the polymeric substrate film (polystyrene or polyethylene) successively by applying Langmuir-Blodgett method by use of oleic acid as piston oil. The monolayer was not built-up on the polymeric substrate when the substrate moved down into the water but was built-up when it moved up from the water. From the area variation of the 2 AC10SNa monolayer on the water surface during the built-up process, the film must be built-up as a Z-membrane. However, it became apparent from X-ray study that the finally obtained built-up film was Y- membrane. 2 AC16SNa monomers in the built-up film were polymerized by UV-irradiation. The X-ray pattern of the polymerized 2 AC16SNa built-up film was similar to that of the monomer film. This result indicates that polymerization proceeds, maintaining highly oriented bimolecular structure. When UV-irradiation was carried out in water, the surface of the polymerized built-up film was very hydrophillic. This indicates that sodium sulfonate groups are highly oriented on the built-up film surface. Blood compatibility of the polymerized built-up film was evaluated from the interaction with human blood platelets. The number of adhered and deformed platelets on the built-up film surface was less than that of the polyethylene surface which was used as a substrate, and almost comparable with that of the poly(urethane-urea) surface which shows relatively excellent blood compatibility.
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U2 - 10.1246/nikkashi.1987.2163
DO - 10.1246/nikkashi.1987.2163
M3 - Article
AN - SCOPUS:85016537325
VL - 1987
SP - 2163
EP - 2168
JO - Nippon Kagaku Kaishi / Chemical Society of Japan - Chemistry and Industrial Chemistry Journal
JF - Nippon Kagaku Kaishi / Chemical Society of Japan - Chemistry and Industrial Chemistry Journal
SN - 0369-4577
IS - 11
ER -