TY - JOUR
T1 - Dramatic reduction of the effect of nanoconfinement on the glass transition of polymer films via addition of small-molecule diluent
AU - Ellison, Christopher J.
AU - Ruszkowski, Robert L.
AU - Fredin, Nathaniel J.
AU - Torkelson, John M.
PY - 2004/3/5
Y1 - 2004/3/5
N2 - The reduction of the effect of nanoconfinement on the glass transition temperature Tg in polymer films was studied via addition of small-molecule diluent. The pyrene-doped polystyrene (PS) films were spin coated onto glass from toluene solutions onto NaCl infrared (IR) crystal windows, transferred to glass in a water reservoir by floating, and dried in ambient conditions for several hours prior to taking measurements. The temperature dependence of fluorescence of PS films was shown as a function of pyrene content. The results indicate that the reduction of Tg in neat PS due to nanoconfinement is suppressed by a high concentration of pyrene diluent.
AB - The reduction of the effect of nanoconfinement on the glass transition temperature Tg in polymer films was studied via addition of small-molecule diluent. The pyrene-doped polystyrene (PS) films were spin coated onto glass from toluene solutions onto NaCl infrared (IR) crystal windows, transferred to glass in a water reservoir by floating, and dried in ambient conditions for several hours prior to taking measurements. The temperature dependence of fluorescence of PS films was shown as a function of pyrene content. The results indicate that the reduction of Tg in neat PS due to nanoconfinement is suppressed by a high concentration of pyrene diluent.
UR - http://www.scopus.com/inward/record.url?scp=2442444912&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=2442444912&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.92.095702
DO - 10.1103/PhysRevLett.92.095702
M3 - Article
C2 - 15089488
AN - SCOPUS:2442444912
SN - 0031-9007
VL - 92
SP - 095702-1-095702-4
JO - Physical Review Letters
JF - Physical Review Letters
IS - 9
M1 - 095702
ER -