波谱学杂志Issue(2)：354-362,9.DOI:10.11938/cjmr20150217
先进固体核磁共振揭示苯硼酸-壳聚糖纳米粒子非均匀结构和相容性
Heterogeneous Structure and Miscibility of Phenylboronic Acid-Rich Chitosan Nanoparticles as Revealed by Advanced Solid-State NMR
摘要
Abstract
By using advanced solid-state NMR techniques, the heterogeneous structure and inter-polymer miscibility of chitosan-poly (N-3-acrylamidophenyl-boronic acid) nanoparticles (CS-PAPBA NPs) were investigated. The13C CPMAS experiments indicate the conformational change of chitosan when incorporated with phenyl boronic acid. Two-dimensional (2D)13C-1H HETCOR experiments further demonstrate that a portion of chitosan is closely bound with PAPBA in the interphase by means of boronic coordination interaction. 2D1H-1H spin-exchange with spin-diffusion experiments demonstrate that the interfacial mixing of chitosan and PAPBA, and micro-phase separation is of the order of 15–20 nanometers.关键词
固体核磁共振/非均匀结构/相容性/纳米粒子/壳聚糖Key words
solid-state NMR/heterogeneous structure/miscibility/nanoparticles/chitosan分类
数理科学引用本文复制引用
王粉粉,陈铁红,孙平川..先进固体核磁共振揭示苯硼酸-壳聚糖纳米粒子非均匀结构和相容性[J].波谱学杂志,2015,(2):354-362,9.基金项目
The National Natural Science Foundation of China (20825416,21374051) （20825416,21374051）
