摘要
以异丙基丙烯酰胺(NIPAM)、丙烯酸(AA)为原料合成了一系列具有良好球形形态的P(NIPAM-co-AA)响应性颗粒;采用SEM和FTIR对制备的P(NIPAM-co-AA)颗粒进行了表征;调控了颗粒中的单体比例,考察了单体比例对颗粒乳化性能的影响。实验结果表明,随着P(NIPAM-co-AA)颗粒中羧基含量的增加,乳液液滴变大;p H调控下的乳化性能研究确认了羧基对P(NIPAM-co-AA)颗粒乳化性质的影响。进一步制备了聚合物复合磁性颗粒,实现了乳液液滴的磁驱动和油水分离。
A series of P（NIPAM-co-AA） responsive particles with different monomer ratios were synthesized by the radical polymerization of N-isopropyl acrylamide（NIPAM） and acrylic acid（AA）. The morphologies and compositions of the as-prepared particles were characterized by SEM and FTIR,respectively. The emulsification of particles in oil/water was dependent on the monomer ratio,resulting in the bigger emulsion droplets with more content of AA,which was confirmed by changing p H value in emulsion. Furthermore,magnetic hybrid particles were prepared via the copolymerization with monomers and the modified magnetic particles,exhibiting the functionality of separating the mixture of oil and water,and the recyclability.
出处
《石油化工》
CAS
CSCD
北大核心
2017年第6期772-777,共6页
Petrochemical Technology
关键词
响应性聚合物颗粒
亲疏水性转变
颗粒乳化
油水分离
磁回收颗粒乳化剂
responsive polymer particles
transformation of hydrophilic/hydrophobic
particles emulsification
oil/water separation
recyclable emulsifier under magnetic field
