EFFECT OF MOLECULAR-WEIGHT ON GLASS-TRANSITION TEMPERATURES (COMPOSITIONAL VARIATION OF GLASS-TRANSITION TEMPERATURES-3)

被引：28
作者：
COUCHMAN, PR
机构：
[1] Department of Mechanics and Materials Science, Rutgers University, New Brunswick
来源：
JOURNAL OF APPLIED PHYSICS | 1979年 / 50卷 / 10期
关键词：
D O I：
10.1063/1.325792
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A predictive equation for the influence of chain ends on glass-transition temperatures is derived from a thermodynamic theory for the compositional variation of Tg. This relation is found to give excellent agreement with results for the effect in polystyrene, and produces a convenient and accurate first approximation. Secondary approximations to the principal equation are formally identical to the Ueberreiter-Kanig and Fox-Flory equations for the variation of Tg with molecular weight.
引用
收藏
页码：6043 / 6046
页数：4
相关论文
共 18 条
[1]  
BOYER RF, 1977, ENCYCLOPEDIA POLYMER, V2
[2]   CLASSICAL THERMODYNAMIC DISCUSSION OF EFFECT OF COMPOSITION ON GLASS-TRANSITION TEMPERATURES [J].
COUCHMAN, PR ;
KARASZ, FE .
MACROMOLECULES, 1978, 11 (01) :117-119
[3]   COMPOSITIONAL VARIATION OF GLASS-TRANSITION TEMPERATURES .2. APPLICATION OF THERMODYNAMIC THEORY TO COMPATIBLE POLYMER BLENDS [J].
COUCHMAN, PR .
MACROMOLECULES, 1978, 11 (06) :1156-1161
[4]   GLASS-TRANSITION TEMPERATURES OF COMPATIBLE POLYMER MIXTURES [J].
COUCHMAN, PR .
PHYSICS LETTERS A, 1979, 70 (02) :155-154
[5]   MOLECULAR MOTIONS IN POLY(DIMETHYL SILOXANE)OLIGOMERS AND POLYMERS [J].
COWIE, JMG ;
MCEWEN, IJ .
POLYMER, 1973, 14 (09) :423-426
[6]  
Fox T.G., 1956, B AM PHYS SOC, V1, P123
[7]   THE GLASS TEMPERATURE AND RELATED PROPERTIES OF POLYSTYRENE - INFLUENCE OF MOLECULAR WEIGHT [J].
FOX, TG ;
FLORY, PJ .
JOURNAL OF POLYMER SCIENCE, 1954, 14 (75) :315-319
[8]   INFLUENCE OF MOLECULAR WEIGHT AND DEGREE OF CROSSLINKING ON THE SPECIFIC VOLUME AND GLASS TEMPERATURE OF POLYMERS [J].
FOX, TG ;
LOSHAEK, S .
JOURNAL OF POLYMER SCIENCE, 1955, 15 (80) :371-390
[9]   2ND-ORDER TRANSITION TEMPERATURES AND RELATED PROPERTIES OF POLYSTYRENE .1. INFLUENCE OF MOLECULAR WEIGHT [J].
FOX, TG ;
FLORY, PJ .
JOURNAL OF APPLIED PHYSICS, 1950, 21 (06) :581-591
[10]  
FRIED J, UNPUBLISHED
12