MISCIBILITY OF SYNDIOTACTIC POLYSTYRENE POLY(VINYL METHYL-ETHER) BLENDS

被引：19
|
作者：
CIMMINO, S
DIPACE, E
MARTUSCELLI, E
SILVESTRE, C
RICE, DM
KARASZ, FE
机构：
[1] CNR,IST RIC TECNOL POLIMERI & REOL,VIA TOIANO 6,I-80072 ARCO,ITALY
[2] UNIV MASSACHUSETTS,DEPT POLYMER SCI & ENGN,AMHERST,MA 01003
来源：
POLYMER | 1993年 / 34卷 / 01期
关键词：
SYNDIOTACTIC POLYSTYRENE; POLY(VINYL METHYL ETHER); BLENDS; MISCIBILITY; NMR; DSC;
D O I：
10.1016/0032-3861(93)90309-X
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The dependence of miscibility on blend composition and temperature for syndiotactic polystyrene/poly(vinyl methyl ether) (SPS/PVME) blends, was investigated by solid state n.m.r. spectroscopy and d.s.c. and compared with that of the blend containing atactic polystyrene (APS). The temperature dependence of C-13 cross polarization/magic angle spinning intensities for the resonance of SPS/PVME blends indicates that these blends are phase separated, whereas for the APS/PVME blends, there is evidence of extensive mixing. These results are supported by the presence of one and two glass transition temperatures for the SPS/PVME and APS/PVME blends, respectively, on the d.s.c. thermograms.
引用
收藏
页码：214 / 217
页数：4
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