The polyacrylonitrile-methyl acrylate (AN/MA mole ratio 100/0-70/30) copolymers and copolymers (AN/MA mole ratio 85/15) containing up to 40wt% of microencapsulated n-octadecane (MicroPCMs) are synthesized in water. The MicroPCMs were incorporated at the step of polymerization. The effect of the MA mole ratio and MicroPCMs content on structures and properties of the copolymers were studied by using Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (1H NMR), scanning electronic microscope (SEM), differential scanning calorimetry (DSC), thermogravimetry analysis (TG), gel permeation chromatography (GPC), and X-ray diffraction (XRD). The feeding ratio agreed well with the composition of the AN/MA copolymers. The copolymers are synthesized in the presence of MicroPCMs. The melting point moves to lower temperature (206℃), while the decomposition temperature moves to higher temperature (309℃) with increasing of the MA mole ratio and microcapsules content. The number–average molecular weight of the copolymer is ~30,000. The crystallinity of the copolymer decreases with increasing of the MA mole ratio and microcapsules content.

Acrylonitrile-Methyl methacrylate copolymer was synthesized in aqueous solution by Redox. The copolymer was mixed with 10-40wt% of microencapsulated n-octadecane (MicroPCMs) in water. Copolymer films containing MicroPCMs were cast at room temperature. The copolymer of acrylonitrile-methyl methacrylate and the copolymer films containing MicroPCMs were characterized by using Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), Thermogravimetric Analyzer (TG), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM), etc. The microcapsules in the films are evenly distributed in the copolymer matrix. The heat-absorbing temperatures and heat-evolving temperatures of the films are almost the same as that of the MicroPCMs, respectively. The heat-absorbing temperatures increase slightly with the contents of MicroPCMs increasing. In addition, the enthalpy efficiency of MicroPCMs rises with the contents of MicroPCMs increasing. The crystallinity of the film increases with the contents of MicroPCMs increasing.

采用水相沉淀法制备了舍有 0~30mol 丙烯酸甲酯(MA)的丙烯腈(AN)-丙烯酸甲酯共聚物。采用红外光谱 (FT-IR)、差热分析(DSC)、x射线衍射(XRD)、核磁共振(NMR)等方法时聚合产物进行了分析。聚合产物的组成比与投料比相近，随MA比例的增加，分解温度升高，玻璃化转变温度(Tg )降低。舍MA30mol的共聚物的分解温度为338.8 LC，而熔融温度任为188.8℃，由于第二单体MA 的加入。使得共聚物的熔点降低至分解温度之前，这为改性聚丙烯腈的无增塑熔融纺丝提供了可能性。

系统研究了不同结构的电气石微粉因其自发极性和表面吸附与盐酸、NaOH溶液作用对溶液 p H值、电导率的影响。用粒径分析仪、扫描电子显微镜、电子能谱仪、X 射线衍射仪和红外光谱仪分析不同产地电气石的粒径尺寸、化学成分、晶型结构及其作用原理。用碘量法测定电气石微粉与碱性溶液作用后溶液溶氧量的变化。结果表明：不同产地的电气石微粉由于结构不同产生性能上的差异，它们对溶液pH值、电导率和溶氧量的影响不同。在酸性条件下，内蒙古电气石微粉的作用效果最佳，溶液的pH值由3升至9 。在碱性条件下，河北电气石微粉作用效果最好，溶液pH值由 12降至10。电气石微粉可以大幅度提高水的溶氧量。溶液的溶氧量与电气石组分中氧元素的含量有关，氧元素含量越高，溶液中的溶氧量越大。

Thermo-regulated polyacrylonitrile-vinylidene chloride (PAN/VDC) fibers containing 4-40wt.% of micro phase-change materials (microPCMs) were wet-spun. In this study, fibers containing less than 30wt.% of microencapsulated n-octadecane were spun smoothly. The structures and properties of the fibers were investigated by using Fourier transform infrared, scanning electron microscopy, differential scanning calorimetry, wide-angle X-ray diffraction, dynamic mechanical analysis and thermogravimetric analysis, etc. The microcapsules were intact and evenly distributed inside the polymer matrix. The tensile strengths of the fibers with titers in the range of 1.9 to 10.9 dtex were 0.7 to 2.0 cN/dtex. The elongation of the fibers was approximately 7%. The heat-absorbing and heat-evolving temperatures of the fibers increased slightly with the increase of the content of microPCMs. The enthalpy of melting or enthalpy of crystallization of the fiber containing 30 wt.% of microPCMs was approximately 30 J/g, and the enthalpy of melting or enthalpy of crystallization increased steadily as the content of microPCMs increased. The modulus of the fiber decreased with the increase in the amount of microPCMs in the fiber. The glass transition temperature of the fiber was 89-108