摘要
以聚甲基丙烯酸乙二醇酯(PEGMA)为接枝单体,聚丙烯(PP)为接枝主链,过氧化二异丙苯(DCP)为聚合引发剂,采用熔融接枝法制备了两亲性改性剂PP-g-PEGMA,考察了单体用量和引发剂用量对改性剂接枝率、接枝效率的影响,并通过傅里叶红外光谱(FTIR)、X射线光电子能谱分析(XPS)、接触角测试对接枝聚合物进行了表征。结果表明:接枝聚合物在1 730cm-1处出现吸收峰,说明PEGMA成功地接枝到PP大分子链上;当单体用量在15份,引发剂质量分数在0.3%时,接枝效果最佳;接枝聚合物PP-g-PEGMA具有很好的亲水性,当PP-g-PEGMA的接枝率为3.21%时,接触角可降低至70°。
Using poly（ethylene glycol methacrylate）（PEGMA） as the grafting monomer, polypropylene （PP） as the grafting chain, dicumyl peroxide （DCP） as an initiator, the amphiphilic modifier PP-g-PEGMA was prepared by melt graft polymerization. The effects of different amounts of monomer and initiator on the grafting rate and grafting efficiency of the modifier were investigated, The grafted polymers were characterized by FTIR, XPS and contact angle. The results show that characteristic peaks of the grafting copolymer appears at 1 730 cm^-1, which indicated that PEGMA monomer was grafted onto the PP chain successfully. The grafted polymer can achieve the best effect,when the concentration of monomer is 15 phr,and the mass fraction of initiator is 0.3%. The graf- ted polymer PP-g-PEGMA has good hydrophilicity,and the contact angle can be reduced to 70°when the grafting rate of PP-g-PEGMA is 3.21%.
出处
《现代塑料加工应用》
CAS
北大核心
2017年第2期15-18,共4页
Modern Plastics Processing and Applications
关键词
聚丙烯
聚甲基丙烯酸乙二醇酯
接枝率
接触角
表征
polypropylene
poly（ethylene glycol methacrylate）
grafting rate
contact angle
characterization
