首页> 外文期刊>Macromolecular rapid communications: Publishing the newsletters of the European Polymer Federation >Polymerized ionic liquid as stabilizer in aqueous emulsion polymerization enables a hydrophilic-hydrophobic transition during film formation
【24h】

Polymerized ionic liquid as stabilizer in aqueous emulsion polymerization enables a hydrophilic-hydrophobic transition during film formation

机译:聚合离子液体作为水性乳液聚合中的稳定剂,可在成膜过程中实现亲水-疏水转变

获取原文
获取原文并翻译 | 示例
获取外文期刊封面目录资料

摘要

Polymerized ionic liquid (PIL) nanoparticles are for the first time applied as sole stabilizers in aqueous emulsion polymerization and reveal an astonishing and unexpected behavior. In a well-dispersed state, the PIL nanoparticles serve as an unexpectedly effective stabilizer for polystyrene dispersions, enabling solids content of greater than 40. However, the same PIL as dry powder is hydrophobic and, in accordance with Bancroft's rule, unable to stabilize aqueous dispersions. This ambivalent behavior of PIL is extremely beneficial for the application of aqueous dispersions because, as desired for decades, the hydrophilic dispersed state during synthesis turns hydrophobic in the dried state during application of the polymer. Polymerized ionic liquids (PILs) are a new class of very effective colloidal stabilizers for emulsion polymerization. In contrast to state of the art emulsifiers for latex particles, PILs have the decisive advantage that they do not increase the hydrophilicity of the final polymeric product but act, due to their inherent properties, in the opposite direction and increase the hydrophobicity.
机译:聚合离子液体(PIL)纳米颗粒首次作为唯一稳定剂应用于水性乳液聚合中,并显示出令人惊讶和意想不到的行为。在分散良好的状态下,PIL纳米颗粒可作为聚苯乙烯分散体的意外有效稳定剂,使固体含量大于40%。然而,与干粉相同的 PIL 是疏水性的,并且根据 Bancroft 规则,无法稳定水分散体。PIL的这种矛盾行为对于水性分散体的应用非常有益,因为正如几十年来所期望的那样,合成过程中的亲水分散状态在聚合物的应用过程中在干燥状态下变成疏水状态。聚合离子液体(PIL)是一类用于乳液聚合的新型非常有效的胶体稳定剂。与最先进的乳胶颗粒乳化剂相比,PIL具有决定性的优势,即它们不会增加最终聚合物产品的亲水性,但由于其固有的特性,它们的作用方向相反,并增加了疏水性。

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号