A BROAD LINE NMR-STUDY OF ORIENTED POLY(VINYLIDENE FLUORIDE)

被引:17
作者
CLEMENTS, J
DAVIES, GR
WARD, IM
机构
[1] Univ of Leeds, Dep of Physics,, Leeds, Engl, Univ of Leeds, Dep of Physics, Leeds, Engl
关键词
MAGNETIC MEASUREMENTS - Resonance - MAGNETIC RESONANCE;
D O I
10.1016/0032-3861(85)90032-1
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Broadline nuclear magnetic resonance measurements have been carried out for the proton resonance in oriented poly(vinylidene fluoride). The spectra in general show two component lines with distinctly different line widths. The broad component shows a high degree of molecular orientation and can be satisfactorily assigned to the crystalline regions of the polymer. The narrow component corresponds to an oriented non crystalline phase which is sufficiently constrained to allow motion about the chain axis only. An appreciable decrease in the value of the rigid mass fraction was observed in both of the samples over the temperature range examined.
引用
收藏
页码:208 / 218
页数:11
相关论文
共 22 条
[1]   NUCLEAR MAGNETIC RESONANCE MODULATION CORRECTION [J].
ANDREW, ER .
PHYSICAL REVIEW, 1953, 91 (02) :425-425
[2]   INFRARED STUDY OF PHASE-III POLY(VINYLIDENE FLUORIDE) [J].
BACHMANN, MA ;
GORDON, WL ;
KOENIG, JL ;
LANDO, JB .
JOURNAL OF APPLIED PHYSICS, 1979, 50 (10) :6106-6112
[3]  
Bevington P., 1969, DATA REDUCTION ERROR
[4]   PIEZOELECTRICITY AND PYROELECTRICITY IN POLYVINYLIDENE FLUORIDE - MODEL [J].
BROADHURST, MG ;
DAVIS, GT ;
MCKINNEY, JE ;
COLLINS, RE .
JOURNAL OF APPLIED PHYSICS, 1978, 49 (10) :4992-4997
[5]  
BROADHURST MG, 1975, P PIEZOELECTRIC PYRO
[6]   EVIDENCE FOR A NEW CRYSTAL PHASE IN CONVENTIONALLY POLED SAMPLES OF POLY(VINYLIDENE FLUORIDE) IN CRYSTAL FORM-II [J].
DAVIES, GR ;
SINGH, H .
POLYMER, 1979, 20 (06) :772-774
[7]   THE USE OF NMR LINEWIDTHS TO STUDY B-AXIS DISTRIBUTIONS IN POLED AND UNPOLED PVDF [J].
DOUGLASS, DC ;
MCBRIERTY, VJ ;
WANG, TT .
JOURNAL OF CHEMICAL PHYSICS, 1982, 77 (11) :5826-5835
[8]   STUDY OF MOLECULAR MOTION IN DRAWN POLYETHYLENE BY BROAD-LINE NUCLEAR MAGNETIC RESONANCE [J].
FOLKES, MJ ;
WARD, IM .
JOURNAL OF MATERIALS SCIENCE, 1971, 6 (06) :582-&
[9]   THE MANUFACTURE OF ULTRAHIGH MODULUS POLYETHYLENES BY DRAWING THROUGH A CONICAL DIE [J].
GIBSON, AG ;
WARD, IM .
JOURNAL OF MATERIALS SCIENCE, 1980, 15 (04) :979-986
[10]  
HASEGAWA R, 1972, POLYM J, V3, P660