摘要
用接枝单体和引发剂的溶液浸渍聚乙烯(PE),然后除去有机溶剂,热引发接枝改性聚乙烯。考察了以甲基丙烯酸缩水甘油酯(GMA)为第一单体、苯乙烯(St))为共单体、过氧化苯甲酰(BPO)为引发剂时,单体投料量、浸渍时间和反应温度等因素对接枝反应的影响,并用红外光谱对接枝产物进行了表征。结果表明:当接枝单体投料量为7.0%、界面剂用量为17.2%时,室温下浸渍6 h,于100℃反应2 h得到接枝率为6.43%的接枝产物。
Modification of polyethylene （PE） by grafting of glycidyl methacrylate （GMA） in solid state was carried out, using styrene （St） as co-monomer and benzoylperoxide （BPO） as initiator. PE was impregnated in an organic solution of the monomers and initiator for sometime. The grafting reaction was taken place after removal of organic solvent. The effects of monomer dosage,co-monomer type,and reaction temperature etc. on grafting reaction were studied. The FTIR results confirmed that both glycidyl methacrylate and styrene were grafted onto PE. The maximum grafting degree of 6.43 % was reached when monomers dosage was 7.0 % ,the interracial agent dosage was 17.2 % ,and reacted at 100℃ for 2 h after 6 h impregnation at room temperature.
出处
《塑料》
CAS
CSCD
北大核心
2012年第4期79-81,共3页
Plastics
