Radiation induced grafting of mixed monomers onto polyester and polypropylene fibers
Radiation induced grafting of mixed monomers onto polyester and polypropylene fibers
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混合单体在聚酯和聚丙烯纤维上的辐射诱导接枝
DOI：
10.1002/app.1987.070330805
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发表时间：
1987
影响因子：
3
通讯作者：
M. Teli
中科院分区：
文献类型：
--
作者：
M. Rao;K. Rao;H. Lokhande;M. Teli
报道了用辐射接枝法将丙烯酰胺和丙烯酸的混合物接枝到涤纶和丙纶上，以及将丙烯酸和甲基丙烯酸的混合物接枝到丙纶上。结果表明，当用纯丙烯酰胺接枝时，接枝程度较小，而当用混合物接枝时，共聚物中的丙烯酰胺含量大于投料比。根据链转移机理对实验结果进行了解释。对于甲基丙烯酸和丙烯酸混合物，接枝率随着原料中丙烯酸浓度的增加而下降，这是因为主链聚合物分子与丙烯酸形成了三维网状结构或高度支化结构，阻止了单体从溶液相扩散到溶胀相。
Grafting of the mixture of acrylamide and acrylic acid onto polyester and polypropylene fibers and mixture of acrylic acid and methacrylic acid onto polypropylene by the radiation method are reported. It is observed that when pure acrylamide was used for grafting, the grafting extent was small, whereas when the mixture was used, the amount of acrylamide content in the copolymer was found to be more than the feed ratios. The results are explained on the basis of chain transfer mechanism. With methacrylic acid and acrylic acid mixtures, the rate of grafting decreased with the increase in the concentration of acrylic acid in the feed ratio, and this has been explained on the basis of the formation of either a 3-dimensional network structure or a highly branched structure involving backbone polymer molecules with acrylic acid, which prevents the diffusion of the monomer from the solution phase to the swollen phase.