2 TYPES OF PHYSICAL NETWORKS IN CROSS-LINKED SEGMENTED POLYURETHANES

被引:0
作者
TERESHATOV, VV
TERESHATOVA, EN
VOLKOVA, ER
机构
来源
VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A & SERIYA B | 1995年 / 37卷 / 11期
关键词
D O I
暂无
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Segmented polyurethanes prepared with a bicomponent curing, agent containing a polyol were shown to be characterized by a network of interchain physical bonds existing outside hard-segment domains. Network parameters of cross-linked polyurethanes prepared with a bicomponent curing agent were estimated, and their variations with temperature and tensile drawing was examined. The effect of each type of network on temperature dependences of the strength and critical ultimate tensile strain of segmented elastomers was studied. A marked decrease in the critical strain of segmented polyurethanes with increasing test temperature was shown to be related not only to the disruption of interchain physical bonds in elastomer but also to the presence of chemical cross-links.
引用
收藏
页码:1881 / 1887
页数:7
相关论文
共 50 条
[31]   ON THE DYNAMICS OF MODERATELY CROSS-LINKED NETWORKS [J].
SOMMER, JU .
JOURNAL OF CHEMICAL PHYSICS, 1991, 95 (02) :1316-1317
[32]   THE ANOMALOUS SWELLING OF CROSS-LINKED NETWORKS [J].
CRISSMAN, JM ;
MCKENNA, GB .
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1992, 204 :254-PMSE
[33]   Microrheology of cross-linked polyacrylamide networks [J].
Dasgupta, BR ;
Weitz, DA .
PHYSICAL REVIEW E, 2005, 71 (02)
[34]   STRUCTURE OF SPACE CROSS-LINKED NET OF POLYURETHANES ON BASIS OF BRANCHED OLIGOESTERS [J].
LIPATOV, YS ;
EREMEEVA, TV ;
DAVIDOVA, EV ;
KARYAKINA, MI .
DOPOVIDI AKADEMII NAUK UKRAINSKOI RSR SERIYA B-GEOLOGICHNI KHIMICHNI TA BIOLOGICHNI NAUKI, 1976, (02) :151-154
[35]   EFFECT OF THE STRUCTURE OF SLIGHTLY CROSS-LINKED POLYURETHANES ON THEIR THERMAL-STABILITY [J].
KOSCIELECKA, A ;
DZIERZA, W .
ANGEWANDTE MAKROMOLEKULARE CHEMIE, 1987, 152 :41-53
[36]   Enzymatically Cross-Linked Tilapia Gelatin Hydrogels: Physical, Chemical, and Hybrid Networks [J].
Bode, Franziska ;
da Silva, Marcelo Alves ;
Drake, Alex F. ;
Ross-Murphy, Simon B. ;
Dreiss, Cecile A. .
BIOMACROMOLECULES, 2011, 12 (10) :3741-3752
[37]   Shape memory polyurethanes cross-linked by surface modified silica particles [J].
Jang, Moon Kyoung ;
Hartwig, Andreas ;
Kim, Byung Kyu .
JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (08) :1166-1172
[38]   STUDY OF INFLUENCE OF STRUCTURE OF DIISOCYANATES ON PHOTOELASTIC PROPERTIES OF CROSS-LINKED POLYURETHANES [J].
BUBLIK, AT ;
SHCHEGOL.NA ;
SOKOLOV, SI ;
MOZZHUKH.LV ;
APUKHTIN.NP .
VYSOKOMOLEKULYARNYE SOEDINENIYA SECTION B, 1971, 13 (12) :889-&
[39]   INTERPLAY OF RUBBER NETWORK THEORY WITH THE DAMPING BEHAVIOR OF CROSS-LINKED POLYURETHANES [J].
HUR, T ;
MANSON, JA ;
SPERLING, LH .
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1989, 198 :208-PMSE
[40]   Degradability of cross-linked polyurethanes based on synthetic polyhydroxybutyrate and modified with polylactide [J].
Joanna Brzeska ;
Magda Morawska ;
Wanda Sikorska ;
Agnieszka Tercjak ;
Marek Kowalczuk ;
Maria Rutkowska .
Chemical Papers, 2017, 71 :2243-2251