Melting and recrystallization processes in a rubbery polymer detected by vapor sorption and temperature-modulated DSC methods

被引:7
作者
Alentiev, A
Sanopoulou, M [1 ]
Ushakov, N
Papadokostaki, KG
机构
[1] Demokritos Natl Res Ctr, Inst Chem Phys, GR-15310 Athens, Greece
[2] Russian Acad Sci, AV Topchiev Petrochem Synth Inst, Moscow 117912, Russia
关键词
temperature-modulated DSC; sorption overshoots; poly(dimethylsilatrimethylene);
D O I
10.1016/S0032-3861(01)00758-3
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Series of successive absorption runs of n-hexane vapor in films of semi-crystalline poly(dimethylsilatrimethylene) at 25 degreesC are presented. Sorption overshoots were observed in the uptake kinetic curves of first series of absorption runs in as-prepared films. The said overshoots were absent in the second series of runs, conducted after desorption, while the sorption isotherms of the two series were identical. The overshoots are attributable to penetrant-induced melting and recrystallization phenomena. Strong support to this interpretation is given by temperature-modulated DSC data obtained from the pure polymer, which reveal similar thermally induced phenomena at slightly higher temperatures. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1949 / 1952
页数:4
相关论文
共 9 条
[1]   KINETIC AND EQUILIBRIUM PHENOMENA IN SYSTEM - ACETONE VAPOR AND POLYCARBONATE FILM [J].
KAMBOUR, RP ;
KARASZ, FE ;
DAANE, JH .
JOURNAL OF POLYMER SCIENCE PART A-2-POLYMER PHYSICS, 1966, 4 (3PA2) :327-&
[2]   CRYSTALLIZATION OF ISOTACTIC POLYSTYRENE INDUCED BY ORGANIC VAPORS [J].
OVERBERGH, N ;
BERGHMANS, H ;
SMETS, G .
POLYMER, 1975, 16 (10) :703-708
[3]   Temperature modulated DSC studies of melting and recrystallization in polymers exhibiting multiple endotherms [J].
Sauer, BB ;
Kampert, WG ;
Blanchard, EN ;
Threefoot, SA ;
Hsiao, BS .
POLYMER, 2000, 41 (03) :1099-1108
[4]  
SOLOVIEV SA, 2002, IN PRESS POLYM SCI, V44
[5]   DIFFUSION AND SOME STRUCTURAL EFFECTS OF 2 CHLORINATED HYDROCARBON SOLVENTS IN BISPHENOL A POLYCARBONATE [J].
TITOW, WV ;
BRADEN, M ;
CURRELL, BR ;
LONERAGA.RJ .
JOURNAL OF APPLIED POLYMER SCIENCE, 1974, 18 (03) :867-886
[6]  
USHAKOV NV, 1995, POLYM SCI SER A+, V37, P320
[7]   SOLVENT-INDUCED CRYSTALLIZATION OF ISOTACTIC POLYPROPYLENE IN CYCLOHEXANE AT DIFFERENT TEMPERATURES [J].
VITTORIA, V .
POLYMER, 1991, 32 (05) :856-859
[8]   ANOMALOUS SORPTION IN POLY(ETHYL METHACRYLATE) [J].
VRENTAS, JS ;
DUDA, JL ;
HOU, AC .
JOURNAL OF APPLIED POLYMER SCIENCE, 1984, 29 (01) :399-406
[9]   The nature of secondary crystallization in poly(ethylene terephthalate) [J].
Wang, ZG ;
Hsiao, BS ;
Sauer, BB ;
Kampert, WG .
POLYMER, 1999, 40 (16) :4615-4627