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首页> 外文期刊>Journal of Materials Research >Synthesis Of Poly-2-hydroxyethyl Methacrylate-montmorillonite Nanocomposite Via In Situ Atom Transfer Radical Polymerization
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Synthesis Of Poly-2-hydroxyethyl Methacrylate-montmorillonite Nanocomposite Via In Situ Atom Transfer Radical Polymerization

机译：原位原子转移自由基聚合合成甲基丙烯酸2-羟乙酯-蒙脱土纳米复合材料

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摘要

The poly-2-hyroxyethyl methacrylate (PHEMA)/clay nanocomposite was synthesized by in situ atom transfer radical polymerization (ATRP) from initiator moieties immobilized within the silicate galleries of the clay particles. To produce organically modified montmorillonite (MMT) that has ATRP initiator moiety, a new catalyst that consists of quaternary ammonium salt moiety and an initiator moiety was synthesized. This initiator was intercalated into the interlayer spacing of the MMT. The polymerization reaction was carried out in a mixed solvent system consisting of methyl ethyl ketone and 1 -propanol at 50 ℃, using the initiator that has been already synthesized with a copper bromide catalyst. The 2, 2'-bipyridyl (bpy) complex was used as ligand. The products were characterized via Fourier transform infrared, nuclear magnetic resonance (~1H NMR, ~(12)C NMR), transmission electron microscopy, x-ray diffraction, thermogravimetric analysis, and differential scanning calorimetry.
机译：聚甲基丙烯酸2-羟乙酯（PHEMA）/粘土纳米复合材料是通过固定在粘土颗粒硅酸盐通道内的引发剂部分通过原位原子转移自由基聚合（ATRP）合成的。为了生产具有ATRP引发剂部分的有机改性蒙脱土（MMT），合成了一种由季铵盐部分和引发剂部分组成的新催化剂。将该引发剂插入到MMT的层间间隔中。使用已经与溴化铜催化剂合成的引发剂，在50℃下于由甲乙酮和1-丙醇组成的混合溶剂体系中进行聚合反应。将2，2'-联吡啶（bpy）络合物用作配体。产物通过傅立叶变换红外光谱，核磁共振（〜1H NMR，〜（12）C NMR），透射电子显微镜，x射线衍射，热重分析和差示扫描量热法进行表征。

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