Low-temperature fusion of polymeric nanostructures using carbon dioxide

被引:21
作者
Yang, Yong
Liu, Dehua
Xie, Yubing
Lee, Ly J. [1 ]
Tomasko, David L.
机构
[1] Ohio State Univ, Dept Chem & Biomol Engn, Columbus, OH 43210 USA
[2] Ohio State Univ, Nanoscale Sci & Engn Ctr Affordable Nanoengn Poly, Columbus, OH 43210 USA
关键词
D O I
10.1002/adma.200601481
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A low-temperature fusion method for preparing polymeric nanostructures based on low-pressure CO2-enhanced chain mobility at the nanoscale is presented. Characterization of the structures reveals a pressure-tun able rubbery layer on the surface. The successful fusion of polymeric nanostructures (see figure) at temperatures below the bulk glass-transition temperature of the polymer is demonstrated. The technique has potential for the assembly of 3D micro/nanoscale polymeric devices for biomedical applications.
引用
收藏
页码:251 / +
页数:5
相关论文
共 29 条
[1]   Welding colloidal crystals with carbon dioxide [J].
Abramowitz, H ;
Shah, PS ;
Green, PF ;
Johnston, KP .
MACROMOLECULES, 2004, 37 (19) :7316-7324
[2]   Strength development at the interface of amorphous polymers and their miscible blends, below the glass transition temperature [J].
Boiko, YM ;
Prud'homme, RE .
MACROMOLECULES, 1998, 31 (19) :6620-6626
[3]   Bonding at symmetric polymer/polymer interfaces below the glass transition temperature [J].
Boiko, YM ;
Prudhomme, RE .
MACROMOLECULES, 1997, 30 (12) :3708-3710
[4]   Entanglements at polymer surfaces and interfaces [J].
Brown, HR ;
Russell, TP .
MACROMOLECULES, 1996, 29 (02) :798-800
[5]   Supercritical CO2 welding of laminated linear low density polyethylene films [J].
Caskey, T ;
Lesser, AJ ;
McCarthy, TJ .
POLYMER ENGINEERING AND SCIENCE, 2001, 41 (12) :2259-2265
[6]   Interface and surface effects on the glass transition in thin polystyrene films [J].
DeMaggio, GB ;
Frieze, WE ;
Gidley, DW ;
Zhu, M ;
Hristov, HA ;
Yee, AF .
PHYSICAL REVIEW LETTERS, 1997, 78 (08) :1524-1527
[7]   The distribution of glass-transition temperatures in nanoscopically confined glass formers [J].
Ellison, CJ ;
Torkelson, JM .
NATURE MATERIALS, 2003, 2 (10) :695-700
[8]   The glass transition in thin polymer films [J].
Forrest, JA ;
Dalnoki-Veress, K .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2001, 94 (1-3) :167-196
[9]   Effect of free surfaces on the glass transition temperature of thin polymer films (vol 77, pg 2002, 1996) [J].
Forrest, JA ;
DalnokiVeress, K ;
Stevens, JR ;
Dutcher, JR .
PHYSICAL REVIEW LETTERS, 1996, 77 (19) :4108-4108
[10]   Thermal probe measurements of the glass transition temperature for ultrathin polymer films as a function of thickness [J].
Fryer, DS ;
Nealey, PF ;
de Pablo, JJ .
MACROMOLECULES, 2000, 33 (17) :6439-6447