摘要
以ＥＳＲ、ＵＶ和ＩＲ表征Ｃｕ（２＋）离子与ＰＶＡＣ的配位反应。根据ＣＵＣｌ２·２Ｈ２Ｏ乙醇溶液与ＰＶＡｃ－ＣｕＣｌ２·２Ｈ２Ｏ乙醇溶液的电导率差值随Ｃｕ（２＋）离子摩尔浓度变化的明显转析点得知，１个Ｃｕ（２＋）离子大约能与ＰＶＡｃ４个链节单元配位。证实ＭＭＡ在Ｃｕ（Ⅱ）－ＰＶＡｃ配合物／Ｎａ２ＳＯ３体系的聚合体是无规ＰＭＭＡ，得率为７０％。讨论了ＭＭＡ在Ｃｕ（Ⅱ）－ＰＶＡｃ配合物／Ｎａ２ＳＯ３体系络合催化引发下的游离基反应历程。
he coordination reaction of PVAc with Cu(2+) is characterized by ESR, UV,XPS and IR. According to specific conductances of the alcohol (95%) solution for CuCl2ZH2O and for PVAc-CuCl22H2O, the scheme of their differences in corresponding specific conductances gives an indication of coordination proportion for Cu(Ⅱ)-PVAc. By means of IR, it is comfirmed that the POlymer of MMA produced in the system of Cu(Ⅱ)-PVAc coordination compound / Na2SO3is inregular structure of PMMA. The yield of PMMA is 70%. The free radical mechanism for the polymerization of MMA, that is due to the coordination catalysis-initiation in the system of Cu (Ⅱ)-PVAc coordination compound/ Na2SO3,is discussed.
出处
《功能高分子学报》
CAS
CSCD
1994年第1期69-75,共7页
Journal of Functional Polymers
关键词
氯化铜
聚醋酸乙烯酯
络合物
配位
coordination polymer, complex catalysis, polyvinyl acetate, cupric chloride.
