CAJ | 학술논문

该文采用先进的固体核磁共振技术研究了壳聚糖-聚3-丙烯酰胺基苯硼酸纳米粒子非均匀结构和高分子间的相容性．13C CPMAS实验表征了壳聚糖与苯硼酸结合后的构象变化，2D13C-1H HETCOR实验进一步证明了壳聚糖在界面处通过硼酸配位作用与苯硼酸链紧密相连．2D 1H-1H 自旋交换和扩散实验阐明了壳聚糖和聚苯硼酸的界面混合性，相分离尺度大约为15-20 nm．
해문채용선진적고체핵자공진기술연구료각취당-취3-병희선알기분붕산납미입자비균균결구화고분자간적상용성．13C CPMAS실험표정료각취당여분붕산결합후적구상변화，2D13C-1H HETCOR실험진일보증명료각취당재계면처통과붕산배위작용여분붕산련긴밀상련．2D 1H-1H 자선교환화확산실험천명료각취당화취분붕산적계면혼합성，상분리척도대약위15-20 nm．
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.