Amphiphilic diblock copolymers with adhesive properties: I. Structure and swelling with water.
We study asymmetric block copolymers with the simple diblock AB architecture, in the case where the longer block A is both hydrophobic and "soft", whereas the shorter block B is hydrophilic and "hard". Materials with such a particular combination of physico-chemical and mechanical properties have distinctive advantages, in particular for designing water-compatible adhesive materials. The phase diagram is established, combining NMR and SAXS characterisations of the materials. The swelling with water is monitored through gravimetry and "time-resolved" SAXS. Indications of maintained adhesive properties in a wet environment are given.
Poivet
S
S
Centre de recherche Paul-Pascal, CNRS, 115 avenue Albert-Schweitzer, F-33600, Pessac, France.
Fabre
P
P
Nallet
F
F
Schierholz
K
K
Abraham
G
G
Papon
E
E
Gnanou
Y
Y
Ober
R
R
Guerret
O
O
El-Bounia
N-E
NE