Probing Glass Transitions in Thin and Ultrathin Polystyrene Films by Stick-Slip Behavior during Dynamic Wetting of Liquid Droplets on Their Surfaces

被引：36

作者：

Zuo, Biao ^{[1
]}

Qian, Chao ^{[1
]}

Yan, Donghuan ^{[1
]}

Liu, Yingjun ^{[1
]}

Liu, Wanglong ^{[1
]}

Fan, Hao ^{[1
]}

Tian, Houkuan ^{[1
]}

Wang, Xinping ^{[1
]}

机构：

[1] Zhejiang Sci Tech Univ, Dept Chem, Key Lab Adv Text Mat & Mfg Technol, Educ Minist, Hangzhou 310018, Zhejiang, Peoples R China

来源：

MACROMOLECULES | 2013年 / 46卷 / 05期

基金：

中国国家自然科学基金;

关键词：

CONTACT-ANGLE MEASUREMENTS; POLYMER-FILMS; SUPERCOOLED LIQUIDS; MOLECULAR-MOTION; SPIN-CAST; TEMPERATURE; CONFINEMENT; RELAXATION; INTERFACE; VISCOELASTICITY;

D O I：

10.1021/ma3023734

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel method was developed to detect the glass transition of thin and ultrathin polystyrene (PS) films by correlating the relationships between the temperature-dependent viscoelasticity of the PS films and stick-slip behavior on their surfaces during dynamic wetting of glycerol or oligo-poly(ethylene glycol) droplets. The peak temperature (T-jm) obtained from the jumping angle-film temperature curve, in which the jumping angle Delta theta was employed to scale the stick slip behavior, was nearly identical to the corresponding T-g (or T-alpha) of the PS film. This was confirmed by dynamic mechanical analysis (DMA) and differential scanning calorimetry (DSC). The change of the measured T-jm with film thickness and substrate chemistry (SiO2-Si and H-Si) further confirmed that the developed method is very sensitive for detecting the dynamics of ultrathin polymer films.

引用

页码：1875 / 1882

页数：8

共 80 条

[11] Glass transition in ultrathin polymer films: Calorimetric study
Efremov, MY
Olson, EA
Zhang, M
Zhang, Z
Allen, LH
[J]. PHYSICAL REVIEW LETTERS, 2003, 91 (08)
[12] The distribution of glass-transition temperatures in nanoscopically confined glass formers
Ellison, CJ
Torkelson, JM
[J]. NATURE MATERIALS, 2003, 2 (10) : 695 - 700
[13] Dramatic reduction of the effect of nanoconfinement on the glass transition of polymer films via addition of small-molecule diluent
Ellison, CJ
Ruszkowski, RL
Fredin, NJ
Torkelson, JM
[J]. PHYSICAL REVIEW LETTERS, 2004, 92 (09) : 095702 - 1
[14] Measuring the surface dynamics of glassy polymers
Fakhraai, Z.
Forrest, J. A.
[J]. SCIENCE, 2008, 319 (5863) : 600 - 604
[15] Forrest JA, 2002, EUR PHYS J E, V8, P261, DOI 10.1140/epje/i2002-10005-5
[16] The glass transition in thin polymer films
Forrest, JA
Dalnoki-Veress, K
[J]. ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2001, 94 (1-3) : 167 - 196
[17] Interface and chain confinement effects on the glass transition temperature of thin polymer films
Forrest, JA
DalnokiVeress, K
Dutcher, JR
[J]. PHYSICAL REVIEW E, 1997, 56 (05): : 5705 - 5716
[18] THE GLASS TEMPERATURE AND RELATED PROPERTIES OF POLYSTYRENE - INFLUENCE OF MOLECULAR WEIGHT
FOX, TG
FLORY, PJ
[J]. JOURNAL OF POLYMER SCIENCE, 1954, 14 (75): : 315 - 319
[19] Structure in thin and ultrathin spin-cast polymer films
Frank, CW
Rao, V
Despotopoulou, MM
Pease, RFW
Hinsberg, WD
Miller, RD
Rabolt, JF
[J]. SCIENCE, 1996, 273 (5277) : 912 - 915
[20] Thermal probe measurements of the glass transition temperature for ultrathin polymer films as a function of thickness
Fryer, DS
Nealey, PF
de Pablo, JJ
[J]. MACROMOLECULES, 2000, 33 (17) : 6439 - 6447

← 1 2 3 4 5 6 7 8 →