Kinetics of solid-state NMR cross-polarization from protons to carbon-13 in surgical sutures

被引:7
|
作者
Sobczak, Marcin [1 ]
Chreptowicz, Tadeusz [1 ]
Kolmas, Joanna [1 ]
Kolodziejski, Waclaw [1 ]
机构
[1] Med Univ Warsaw, Fac Pharm, Dept Inorgan & Analyt Chem, PL-02097 Warsaw, Poland
关键词
Biodegradable polymers; Polyglicolide; Surgical sutures; C-13; NMR; Cross-polarization; SYNTHETIC ABSORBABLE SUTURES; BIODEGRADABLE POLYMERS; MOLECULAR-DYNAMICS; POLY(L-LACTIDE); H-1; CRYSTALLINITY; MICROSPHERES; DEGRADATION; POLYESTERS; MORPHOLOGY;
D O I
10.1016/j.ssnmr.2009.01.001
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Commercial Dexon surgical sutures, made of polyglycolide (PGA), were examined using C-13 CP/MAS NMR. The study shows that detailed analysis of the cross-polarization (CP) process is useful in the peak assignments and in the assessment of molecular mobility in the polymer domains. Crystallinity of PGA in the sutures was estimated at ca. 55%. (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:230 / 234
页数:5
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