The Dipolar-Correlation Effect on the Stimulated Echo. Application to Polymer Melts
β Scribed by R. KIMMICH; E. FISCHER; P. CALLAGHAN; N. FATKULLIN
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 218 KB
- Volume
- 117
- Category
- Article
- ISSN
- 1064-1858
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π SIMILAR VOLUMES
## Abstract **Summary:** A method that takes into account the entire molecular weight distribution (MWD) for the prediction of polymer point properties and/or indexes is presented. The method is based on the convolution of the polymer mass molecular weight distribution and an empirical kernel funct
## Abstract A general expression for the magnetization decay of a multipulse group is derived. This formula is applied to a threeβcomponent model of molecular motions in polymer melts. The influence of the several components on the magnetization decay is discussed. The relation of the effective nuc
An experimental investigation of the effect of the NMR sequence P,( 90" )-r-P,( 180" ) in solids containing different types of dipolar-coupled spin species is reported. The experimental results suggest that the decay of the maximum spin-echo amplitude as a function of pulse spacing depends only on t