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首页> 外文期刊>Journal of Applied Polymer Science >Role of additive HCl in the radiation-induced grafting copolymerization of acrylic acid and sodium styrene sulfonate to high-density polyethylene
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Role of additive HCl in the radiation-induced grafting copolymerization of acrylic acid and sodium styrene sulfonate to high-density polyethylene

机译：HCl添加剂在辐射诱导的丙烯酸和苯乙烯磺酸钠到高密度聚乙烯的接枝共聚中的作用

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Acrylic acid and sodium styrene sulfonate were grafted onto high-density polyethylene (HDPE) membrane by preirradiation, and we prepared a cation exchange membrane with strong acid and weak acid groups. The HCl was used as an additive to change the pH of grafting system, and the effect of pH on grafting yield was studied. In simultaneous radiation method, the overall grafting yield (G(s)) and grafting yield of SSS onto HDPF (G(s)) increased with decreasing of pH. In preirradiation method, G(t) and G(s) first increased with decreasing of pH, and the highest grafting yield was observed at pH = 2.80, then decreased if we further reduced the pH of the grafting system. Viscosity of grafting system was changed owing to the change of the ionization degree of polyacrylic acid in the presence of HCl, so that diffuse rate of monomers into matrix was affected. (c) 2006 Wiley Periodicals, Inc.
机译：通过预辐照将丙烯酸和苯乙烯磺酸钠接枝到高密度聚乙烯（HDPE）膜上，制备了具有强酸和弱酸基团的阳离子交换膜。用盐酸作为添加剂改变接枝体系的pH值，研究了pH值对接枝率的影响。在同时辐射法中，随着pH的降低，总嫁接率（G）和SSS嫁接到HDPF的接枝率（G）增加。在预辐照法中，G（t）和G（s）首先随着pH的降低而增加，并且在pH = 2.80时观察到最高的接枝产率，然后如果我们进一步降低接枝体系的pH值则降低。在盐酸存在下，由于聚丙烯酸离子化程度的变化，使接枝体系的粘度发生变化，从而影响了单体向基体中的扩散速率。 （c）2006年Wiley Periodicals，Inc.

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