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Effect of crosslinking agents on the morphology of polymer particles produced by one-step seeded polymerization
Macromolecular Research ( IF 2.4 ) Pub Date : 2009 , DOI: 10.1007/bf03218688
Donghee Kim , Do Yang Lee , Kangseok Lee , Soonja Choe

One-step seeded polymerization was used to prepare 7∼10 μm of crosslinked monodisperse spheres with four crosslinking agents using 4.68 μm poly(methyl methacrylate) (PMMA) seed particles in aqueous-alcoholic media in the absence of the swelling process. The crosslinking agents used were ethylene glycol dimethacrylate (EGDMA), allyl methacrylate (AMA), 1,6-hexanediol diacrylate (HDDA) and trimethylolpropane trimethacrylate (TMPTMA). The effects of the type and concentration of the crosslinking agents on the swelling, pore size, thermal property of the networks and morphology of the particles were studied. The chemical structures and concentrations of the crosslinking agents affected both the swelling ratio and the porosity of the networks. In addition, the chemistry of the reactive vinyl group and chain length of the crosslinking agents affected the stability of the monodisperse particles of the ultimate morphology.

中文翻译:

交联剂对一步式种子聚合制得的聚合物颗粒形态的影响

在不存在溶胀过程的情况下,使用4.68μm的聚(甲基丙烯酸甲酯)(PMMA)种子颗粒,在水-醇介质中使用一步式种子聚合制备带有4种交联剂的7〜10μm交联的单分散球。所使用的交联剂为乙二醇二甲基丙烯酸酯(EGDMA),甲基丙烯酸烯丙酯(AMA),1,6-己二醇二丙烯酸酯(HDDA)和三羟甲基丙烷三甲基丙烯酸酯(TMPTMA)。研究了交联剂的类型和浓度对溶胀度,孔径,网络热性能和颗粒形态的影响。交联剂的化学结构和浓度会影响网络的溶胀率和孔隙率。此外,
更新日期:2020-09-14
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