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首页> 外文期刊>Journal of Applied Polymer Science >Fabrication and Apparent Kinetic Study of Poly(methyl methacrylate)/Poly(octyl acrylate) and Poly(octyl acrylate)/Poly(methyl methacrylate) Latex Interpenetrating Polymer Networks
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Fabrication and Apparent Kinetic Study of Poly(methyl methacrylate)/Poly(octyl acrylate) and Poly(octyl acrylate)/Poly(methyl methacrylate) Latex Interpenetrating Polymer Networks

机译：聚（甲基丙烯酸甲酯）/聚（丙烯酸辛酯）和聚（丙烯酸辛酯）/聚（甲基丙烯酸甲酯）胶乳互穿聚合物网络的制备及表观动力学研究

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摘要

Two latex interpenetrating polymer networks (LIPNs) were synthesized with meth methacrylate (MMA) and octyl acrylate (OA) as monomers, respectively. The apparent kinetics of polymerization for the LIPNs was studied. This demonstrates that network II does not have a nucleus formation stage. The monomers of network II were diffused into the latex particles of network I and then formed network II by in situ polymerization. It indicates that the polymerization of network I obeys the classical kinetic rules of emulsion polymerization. But the polymerization of network II only appears a constant-rate stage and a decreasing-rate stage. The apparent activation energies (E-a) of network I and network II of PMMA/POA were calculated according to the Arrhenius equation. The E-a values of POA as network I (62 kJ/mol) is similar to that of POA as network II PMMA/POA (60 kJ/mol). However, the E-a value of PMMA as network II POA/PMMA (105 kJ/mol) is higher than that of PMMA as network I (61 kJ/mol). Results show that the E-a value of the network II polymerization is related to the properties of its seed latex.
机译：分别以甲基丙烯酸甲酯（MMA）和丙烯酸辛酯（OA）为单体，合成了两个乳胶互穿聚合物网络（LIPNs）。研究了LIPNs的表观聚合动力学。这表明网络II没有核形成阶段。网络II的单体扩散到网络I的胶乳颗粒中，然后通过原位聚合形成网络II。这表明网络I的聚合遵循乳液聚合的经典动力学规则。但是网络Ⅱ的聚合仅出现一个恒定速率阶段和一个降低速率阶段。根据Arrhenius方程计算了PMMA / POA网络I和网络II的视在活化能（E-a）。作为网络I的POA的E-a值（62 kJ / mol）与作为网络II的POA的E-a值PMMA / POA（60 kJ / mol）相似。但是，作为网络II POA / PMMA的PMMA的E-a值（105 kJ / mol）高于作为网络I POMMA / PMMA的E-a值（61 kJ / mol）。结果表明，网络II聚合的E-a值与其种子胶乳的性能有关。

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