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功能高分子学报:2015,28(1):-

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磁性能可控的聚（N 异丙基丙烯酰胺）基纳米复合水凝胶的制备与表征

王益亨¹, 夏梦阁², 武永涛³, 朱美芳⁴

(1.东华大学材料科学与工程学院，纤维材料改性国家重点实验室，上海 201620;2.东华大学材料科学与工程学院，纤维材料改性国家重点实验室，上海 201621;3.东华大学材料科学与工程学院，纤维材料改性国家重点实验室，上海 201622;4.东华大学材料科学与工程学院，纤维材料改性国家重点实验室，上海 201623)

Preparation and Characterization of PNIPAM Nanocomposite Hydrogels with Controllable Magnetic Properties

WANG Yi heng¹, XIA Meng ge², WU Yong tao³, ZHU Mei fang⁴

(1.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China;2.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201621, China;3.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201622, China;4.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201623, China)

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中文摘要: 以N--异丙基丙烯酰胺（NIPAM）为单体、焦磷酸钠改性的无机锂皂石（Clay-S）为物理交联剂，制备了温敏性的纳米复合水凝胶（NC gels），通过原位化学沉淀法引入Fe3O4纳米粒子，制备了聚（N-异丙基丙烯酰胺）基磁性纳米复合水凝胶（MNC gels）。使用傅里叶变换红外光谱（FT-IR）、X射线衍射（XRD）、扫描电子显微镜（SEM）、能量色散X射线光谱（EDX）、差示扫描量热分析（DSC）、综合物性测量系统（PPMS）等测试方法表征了凝胶网络的结构形态、磁性粒子的晶型及其分布、凝胶的温敏性和磁性能。重点研究了制备过程中的浸泡液铁盐浓度、预聚液的单体浓度及黏土含量对凝胶磁性能的影响，并对上述影响因素进行了分析和模拟。结果表明：MNC gels同时具有温敏性和磁敏性，且其磁性能受浸泡液铁盐浓度、预聚液的单体浓度及黏土含量影响；根据影响因素显著性水平建立了可预测MNC gels磁性能的模型，使磁性能的可控制备成为可能。

中文关键词: 纳米复合水凝胶磁性能可控原位化学沉淀法

Abstract:To combine temperature responsive nanocomposite hydrogels (NC gels) with magnetic response, poly (N-isopropylacrylamide) based magnetic nanocomposite hydrogels (MNC gels) was prepared by embedding magnetic nanoparticles into NC gels via in situ chemical co precipitation method using N-isopropylacrylamide (NIPAM) as monomer and inorganic clay Laponite XLS (Clay-S) as physical crosslinker. Fourier Transform Infrared Spectroscopy (FT-IR), X ray Diffractometer (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX) analysis, Differential Scanning Calorimetry (DSC) and Physical Property Measurement System (PPMS) were used to characterize network structure of MNC gels, Fe3O4 nanoparticles crystal type and distribution, temperature sensitive and magnetic properties. In addition, the effects of concentration of iron ions, monomers concentration and clay content on magnetic performance of MNC gels were investigated in detail, and possible to model it. Results showed that MNC gels combined temperature and magnetic response, where magnetic properties were influenced by above factors. Furthermore, a suitable model was built up to predict magnetic properties of MNC gels, which made controllable preparation of magnetic properties reachable.

keywords: nanocomposite hydrogel controllable magnetic property in situ chemical co-precipitation

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基金项目:国家自然科学基金(50873022)；国家杰出青年科学基金(50925312)

引用本文：
王益亨,夏梦阁,武永涛,朱美芳.磁性能可控的聚（N 异丙基丙烯酰胺）基纳米复合水凝胶的制备与表征[J].功能高分子学报,2015,28(1):.
WANG Yi heng,XIA Meng ge,WU Yong tao,ZHU Mei fang.Preparation and Characterization of PNIPAM Nanocomposite Hydrogels with Controllable Magnetic Properties[J].Journal of Functional Polymers,2015,28(1):.

作者	单位	E-mail
王益亨	东华大学材料科学与工程学院，纤维材料改性国家重点实验室，上海 201620	wangyh1118@mail.dhu.edu.cn
夏梦阁	东华大学材料科学与工程学院，纤维材料改性国家重点实验室，上海 201621
武永涛	东华大学材料科学与工程学院，纤维材料改性国家重点实验室，上海 201622
朱美芳	东华大学材料科学与工程学院，纤维材料改性国家重点实验室，上海 201623	zmf@dhu.edu.cn

Author Name	Affiliation	E-mail
WANG Yi heng	State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China	wangyh1118@mail.dhu.edu.cn
XIA Meng ge	State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201621, China
WU Yong tao	State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201622, China
ZHU Mei fang	State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201623, China	zmf@dhu.edu.cn

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