SUPERCOOLING OF POLYDIMETHYLSILOXANE

被引:36
作者
HELMER, JD
POLMANTEER, KE
机构
[1] Chemical Research Department, Dow Corning Corporation, Midland, Michigan
[2] Battelle Memorial Inst, Columbus, Ohio
关键词
D O I
10.1002/app.1969.070131008
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
This study was undertaken to determine the quenching rates necessary to supercool polydimethylsiloxane. A technique was developed that allowed controlled quenching rates up to 52°C/see and a modified DTA apparatus was used to obtain thermograms during the warm‐up cycle. No supercooling was observed for a cooling rate of 1.6°C/sec; 56% supercooling was found for a 9.6°C/sec cooling rate; 65% for 10.6°C/sec and 85% for a 52°C/sec cooling rate. Evidence was also presented showing that the crystals in polydimethylsiloxane consist of two forms. Copyright © 1969 John Wiley & Sons, Inc.
引用
收藏
页码:2113 / +
页数:1
相关论文
共 11 条
[1]  
BACON K, 1964, NEWER METHODS POLYME, P391
[2]  
BACON K, 1964, NEWER METHODS POLYME, P395
[3]  
BACON K, 1964, NEWER METHODS POLYME, P388
[4]  
FISCHER DJ, 1961, J APPL POLYM SCI, V16, P436
[5]  
KINGDON F, 1962, HERCULES CHEMIST, P5
[6]   BEHAVIOR OF SILASTIC ON AGING [J].
KONKLE, GM ;
SELFRIDGE, RR ;
SERVAIS, PC .
INDUSTRIAL AND ENGINEERING CHEMISTRY, 1947, 39 (11) :1410-1413
[7]   CRYSTALLINITY AND ORIENTATION IN SILICONE RUBBER .1. X-RAY STUDIES [J].
OHLBERG, SM ;
ALEXANDER, LE ;
WARRICK, EL .
JOURNAL OF POLYMER SCIENCE, 1958, 27 (115) :1-17
[8]  
Polmanteer K., 1959, J APPL POLYM SCI, V1, P3
[9]   LOW TEMPERATURE BEHAVIOR OF SILICONE AND ORGANIC RUBBERS [J].
POLMANTEER, KE ;
SERVAIS, PC ;
KONKLE, GM .
INDUSTRIAL AND ENGINEERING CHEMISTRY, 1952, 44 (07) :1576-1581
[10]   CRYSTALLINITY AND ORIENTATION IN SILICONE RUBBER .2. PHYSICAL MEASUREMENTS [J].
WARRICK, EL .
JOURNAL OF POLYMER SCIENCE, 1958, 27 (115) :19-38