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Effect of multiwall carbon nanotube and au nanoparticle on the structure-property relationship of poly(N-isopropyl acrylamide)

机译:多壁碳纳米管和金纳米颗粒对聚(N-异丙基丙烯酰胺)结构性质关系的影响

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摘要

Temperature-sensitive poly(N-isopropyl acrylamide) (PNIPAAm) was synthesized both in the presence and absence of nanomaterials like allyl mercaptan decorated gold nanoparticle and allyalcohol-conjugated multiwall carbon nanotube. The influence of the nanomaterials on the structure-property relationship of PNIPAAm was analyzed and critically compared to the pristine PNIPAAm. During the in situ polymerization, the nanosphere shape of Au nanoparticle was converted into Au nanorod shape, which was confirmed through UV-vis spectroscopy. The glass transition temperature (T _g) of polymeranocomposites was greater than that of the pristine polymer. Thermogravimetric analysis declared that the polymeranocomposites exhibited higher thermal stability than the homopolymer.
机译:在存在和不存在诸如烯丙基硫醇修饰的金纳米颗粒和烯丙醇共轭的多壁碳纳米管等纳米材料的情况下,合成了对温度敏感的聚(N-异丙基丙烯酰胺)(PNIPAAm)。分析了纳米材料对PNIPAAm的结构-性质关系的影响,并与原始PNIPAAm进行了严格的比较。在原位聚合过程中,金纳米颗粒的纳米球形状转化为金纳米棒形状,这通过紫外-可见光谱证实。聚合物/纳米复合材料的玻璃化转变温度(T_g)高于原始聚合物的玻璃化转变温度(T_g)。热重分析表明,聚合物/纳米复合材料比均聚物具有更高的热稳定性。

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