摘要
制备了聚己二酸乙二醇酯(PEA)与α-环糊精(α-CD)的包合物(PEAIC),用红外光谱、核磁共振氢谱和X射线衍射对产物的结构进行了表征,并用差示扫描量热仪和偏光显微镜研究了PEAIC对PEA结晶的影响。结果表明:PEA可以和α-CD发生非共价键作用,形成隧道状晶体结构;同时PEAIC的加入,提高了PEA的结晶温度,加快了其结晶速率,减小了其结晶尺寸。
The inclusion complex of poly(ethylene adipate)(PEA) and α-cyclodextrin(α-CD) was prepared and characterized with Fourier transformation infrared spectrometry(FT-IR),proton nuclear magnetic resonance spectra(1H-NMR) and X-ray diffractometry(XRD).The nucleation effect of this complex on PEA was investigated by differential scanning calorimetry(DSC) and polarized optical microscopy(POM).Results show that PEA interacts with α-CD through non-covalent interactions and forms a channel crystal structure.Moreover,with addition of the PEAIC,PEA exhibits higher crystallization temperature,faster crystallization rate,and smaller spherulites.
出处
《功能高分子学报》
CAS
CSCD
北大核心
2011年第4期422-426,共5页
Journal of Functional Polymers
基金
河南大学博士启动基金(B2010028)
河南大学大学生创新性实验计划(11NB008)
关键词
环糊精
聚己二酸乙二醇酯
包合物
结晶
cyclodextrin
poly(ethylene adipate)
inclusion complex
crystallization