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本文应用反相色谱研究各种溶剂对 PVC,PMMA 及 PVC/PMMA 共混体系的相互作用参数。相互作用参数 x_(13)的数值低,表示聚合物和溶剂之间的相互作用能力强;PVC 和质子接受体溶剂甲乙酮相互作用能力最强;PMMA 对极性溶剂相互作用能力相差不大。x_(23)的数值低,表示聚合物之间相容性好。对于 PVC/PMMA 共混体系,当 PMMA 含量为6.28%时相互作用能力最强,相容性最好。
In this paper, the interaction parameters of various solvents on PVC, PMMA and PVC / PMMA blends were studied by reversed-phase chromatography. The low value of the interaction parameter x_ (13) indicates that the interaction between polymer and solvent is strong. The interaction between PVC and proton acceptor solvent is the strongest. The interaction between PMMA and polar solvent is similar. The value of x_ (23) is low, indicating good compatibility between the polymers. For PVC / PMMA blends, the best interaction and the best compatibility were obtained when PMMA content was 6.28%.