TY - JOUR
T1 - Hinge-linked polymer gels : a rigid network cross-linked with a rotatable tetrasubstituted ferrocene
AU - Hosono, N.
AU - Yoshihara, N.
AU - Murakami, Y.
AU - Watanabe, T.
PY - 2013
Y1 - 2013
N2 - A novel polymeric gel is designed and synthesized, based on rotatable 1,1,3,3-tetrakis(4-aminophenyl)ferrocene cross-linking units capable of hinge-like motion. This hinge-linked gel results from an end-to-end reaction between the ferrocene-based cross-linker and a bifunctional poly(amide acid) oligomer. The cross-linking reaction efficiency is estimated by sol fraction analysis based on the Miller-Macosko model. Mechanical properties and rheological measurements show that the hinge-linked gel exhibits good mechanical stability and perfect elastic properties, although the gel cross-linking depends solely on metal-organic coordination at the ferrocenyl center. The hinge-linked network concept presented herein offers a novel design concept, which may be applicable to a variety of polymeric materials such as resins, metal-organic frameworks, and gels.
AB - A novel polymeric gel is designed and synthesized, based on rotatable 1,1,3,3-tetrakis(4-aminophenyl)ferrocene cross-linking units capable of hinge-like motion. This hinge-linked gel results from an end-to-end reaction between the ferrocene-based cross-linker and a bifunctional poly(amide acid) oligomer. The cross-linking reaction efficiency is estimated by sol fraction analysis based on the Miller-Macosko model. Mechanical properties and rheological measurements show that the hinge-linked gel exhibits good mechanical stability and perfect elastic properties, although the gel cross-linking depends solely on metal-organic coordination at the ferrocenyl center. The hinge-linked network concept presented herein offers a novel design concept, which may be applicable to a variety of polymeric materials such as resins, metal-organic frameworks, and gels.
U2 - 10.1002/macp.201200705
DO - 10.1002/macp.201200705
M3 - Article
SN - 1022-1352
VL - 214
SP - 1356
EP - 1362
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
IS - 12
ER -