CAESURA Studies of Helical Jump Motions in Semi-Crystalline Polymers
CAESURA Studies of Helical Jump Motions in Semi-Crystalline Polymers
复制标题
半结晶聚合物中螺旋跳跃运动的 CAESURA 研究
DOI:
10.1002/macp.200700192
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发表时间:
2007
影响因子:
2.5
通讯作者:
Shao L
中科院分区:
文献类型:
--
作者:
Shao L
Applications of the CAESURA experiment to studies of helical jump motions in semi‐crystalline polymers are described. CAESURA is a recently proposed magic angle spinning exchange NMR experiment which provides detailed information about the timescale and geometry of molecular motions. The potential utility of CAESURA in studies of helical jump motions in a range semi‐crystalline polymers is illustrated using simulated data. In addition, a full experimental investigation of isotactic poly(propylene) is described which confirms the geometry of the helical jump motion and provides a measurement of the jump rate.