Chemistry Reference
In-Depth Information
(a)
HO
2
C
CH
2
CH
Heating
O
n
NHS, DCC
NH
NH
2
Cooling
H
3
C
CH
3
PNIPAAm
(b)
CN
CN
(CH
2
)
2
C
N
N
C
(CH
2
)
2
CO
2
H
CH
3
CH
3
Heating
O
(CH
2
)
3
N
H
O
Si
O
CH=CH
2
Cross-linking
agent
Cooling
CH
3
O
O
H
CH
CH
3
NIPAAm
Initiator-immobilized surface
(c)
CH=CH
2
CH
3
O
H
CH
Heating
O
CH
2
Cl
CH
3
NIPAAm
O
Si
(CH
2
)
2
Cooling
CuCl, Me
6
TREN
O
Above LCST
Below LCST
ATRP Initiator-immobilized surface
Expanded
PNIPAAm
Shrunken
PNIPAAm
Figure 20.2
Preparation of a PNIPAAm modified high-functionality surface using (a) terminal modification method, (b) gel modification
method and (c) ATRP method. NHS; N-Hydroxysuccinimide, DCC; Dicyclohexylcarbodiimide, Me
6
TREN; Tris(2-(dimethylamino)ethyl)amine.
