Abstract
Langmuir-Blodgett (LB) type films, showing highly ordered layer structures, were prepared from two types of polymerizable amphiphiles. One type of the amphiphiles has a polymerizable group in a hydrophilic part, dihexadecyl TV-[11-[[2-(acryloyloxy)ethyl]dimethylammonio]undecanoyl]glutamate bromide (2C16-L-Glu-C11N+Ac), and the other has a polymerizable group in a hydrophobic part, 3-[[ll-(meth-acryloyloxy)undecyl]dodecylmethylammonio]propanesulfonate (MC11C12NS). The LB type films composed of these amphiphiles were polymerized in order to stabilize the surface chemical structure (hydrophilicity or hydrophobicity). The highly oriented bilayer structures were kept even after polymerization. The surface chemical structure of the built-up film composed of 2C16-L-Glu-C11N+Ac was not immobilized by polymerization and the hydrophobic surface changed into the hydrophilic one in water. This result was due to that an intermonolayer polymerization hardly took place. In the case of the LB type films composed of MC11C12NS,the surface chemical structure was stabilized by polymerization and the hydrophilic surface was stable even in air. This result shows that the intermonolayer polymerization progressed in such LB type films. The blood compatibility of the built-up film composed of MC11C12NS which has a sulfonic group in a hydrophilic part was investigated on the basis of the interaction with human blood platelets. The built-up film with sulfonic group orienting normal to the layer surface showed an excellent blood compatibility mainly owing to its negatively charged surface which repels platelets.
| Original language | English |
|---|---|
| Pages (from-to) | 2381-2387 |
| Number of pages | 7 |
| Journal | Macromolecules |
| Volume | 22 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Sep 1 1989 |
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All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry
Cite this
Surface Stability and Functional Property of Polymerized Langmuir—Blodgett Type Films. / Uchida, Motoko; Tanizaki, Tatsuya; Kunitake, Toyoki; Kajiyama, Tisato.
In: Macromolecules, Vol. 22, No. 5, 01.09.1989, p. 2381-2387.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Surface Stability and Functional Property of Polymerized Langmuir—Blodgett Type Films
AU - Uchida, Motoko
AU - Tanizaki, Tatsuya
AU - Kunitake, Toyoki
AU - Kajiyama, Tisato
PY - 1989/9/1
Y1 - 1989/9/1
N2 - Langmuir-Blodgett (LB) type films, showing highly ordered layer structures, were prepared from two types of polymerizable amphiphiles. One type of the amphiphiles has a polymerizable group in a hydrophilic part, dihexadecyl TV-[11-[[2-(acryloyloxy)ethyl]dimethylammonio]undecanoyl]glutamate bromide (2C16-L-Glu-C11N+Ac), and the other has a polymerizable group in a hydrophobic part, 3-[[ll-(meth-acryloyloxy)undecyl]dodecylmethylammonio]propanesulfonate (MC11C12NS). The LB type films composed of these amphiphiles were polymerized in order to stabilize the surface chemical structure (hydrophilicity or hydrophobicity). The highly oriented bilayer structures were kept even after polymerization. The surface chemical structure of the built-up film composed of 2C16-L-Glu-C11N+Ac was not immobilized by polymerization and the hydrophobic surface changed into the hydrophilic one in water. This result was due to that an intermonolayer polymerization hardly took place. In the case of the LB type films composed of MC11C12NS,the surface chemical structure was stabilized by polymerization and the hydrophilic surface was stable even in air. This result shows that the intermonolayer polymerization progressed in such LB type films. The blood compatibility of the built-up film composed of MC11C12NS which has a sulfonic group in a hydrophilic part was investigated on the basis of the interaction with human blood platelets. The built-up film with sulfonic group orienting normal to the layer surface showed an excellent blood compatibility mainly owing to its negatively charged surface which repels platelets.
AB - Langmuir-Blodgett (LB) type films, showing highly ordered layer structures, were prepared from two types of polymerizable amphiphiles. One type of the amphiphiles has a polymerizable group in a hydrophilic part, dihexadecyl TV-[11-[[2-(acryloyloxy)ethyl]dimethylammonio]undecanoyl]glutamate bromide (2C16-L-Glu-C11N+Ac), and the other has a polymerizable group in a hydrophobic part, 3-[[ll-(meth-acryloyloxy)undecyl]dodecylmethylammonio]propanesulfonate (MC11C12NS). The LB type films composed of these amphiphiles were polymerized in order to stabilize the surface chemical structure (hydrophilicity or hydrophobicity). The highly oriented bilayer structures were kept even after polymerization. The surface chemical structure of the built-up film composed of 2C16-L-Glu-C11N+Ac was not immobilized by polymerization and the hydrophobic surface changed into the hydrophilic one in water. This result was due to that an intermonolayer polymerization hardly took place. In the case of the LB type films composed of MC11C12NS,the surface chemical structure was stabilized by polymerization and the hydrophilic surface was stable even in air. This result shows that the intermonolayer polymerization progressed in such LB type films. The blood compatibility of the built-up film composed of MC11C12NS which has a sulfonic group in a hydrophilic part was investigated on the basis of the interaction with human blood platelets. The built-up film with sulfonic group orienting normal to the layer surface showed an excellent blood compatibility mainly owing to its negatively charged surface which repels platelets.
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U2 - 10.1021/ma00195a065
DO - 10.1021/ma00195a065
M3 - Article
AN - SCOPUS:0024663033
VL - 22
SP - 2381
EP - 2387
JO - Macromolecules
JF - Macromolecules
SN - 0024-9297
IS - 5
ER -