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在乙醇 - 水混合物中通过苯乙烯的一步无表面活性剂自模板聚合将聚苯乙烯颗粒从球形工程化为树莓状再到中空花状。

Shape engineering of polystyrene particles from spherical to raspberry-like to hollow flower-like one-step non-surfactant self-templating polymerization of styrene in ethanol-water mixtures.

作者信息

Xiang Xuechen, Chen Zhe, Ren Dongfang, Xu Jiaqiong, Li Xiaofeng, Ye Zixin, Chen Ning, Chen Qiming, Ma Shiyu

机构信息

Research Center of Water Resources and Interface Science, School of Chemistry and Molecular Engineering, East China Normal University No. 500, Dongchuan Rd. Shanghai 200241 P. R. China

出版信息

RSC Adv. 2020 Mar 20;10(19):11535-11542. doi: 10.1039/d0ra00005a. eCollection 2020 Mar 16.

DOI:10.1039/d0ra00005a
PMID:35495350
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9050510/
Abstract

We report a facile method for preparation of polystyrene (PS) particles with spherical, raspberry-like, and hollow flower-like structures by single-step non-surfactant self-templating polymerization of styrene in ethanol-water mixtures. PS particles with diverse morphologies could be easily obtained by simply adjusting the volume ratios of the styrene/water/ethanol mixture and initiator-ethanol-water mixture. By decreasing this ratio, the particles with spherical, raspberry-like, and hollow flower-like structures were obtained in sequence. The wettability of the coatings changing from hydrophilicity to hydrophobicity was easily tuned by the PS particles with different roughnesses. A competitive mechanism of interfacial polymerization and exudation was proposed to interpret the formation of PS particles with diverse morphologies.

摘要

我们报道了一种简便的方法，通过在乙醇 - 水混合物中进行苯乙烯的单步无表面活性剂自模板聚合来制备具有球形、树莓状和空心花状结构的聚苯乙烯（PS）颗粒。通过简单地调整苯乙烯/水/乙醇混合物和引发剂 - 乙醇 - 水混合物的体积比，可以轻松获得具有不同形态的PS颗粒。通过降低该比例，依次获得了具有球形、树莓状和空心花状结构的颗粒。具有不同粗糙度的PS颗粒能够轻松调节涂层的润湿性，使其从亲水性转变为疏水性。提出了一种界面聚合和渗出的竞争机制来解释具有不同形态的PS颗粒的形成。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/63fb097f7597/d0ra00005a-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/e75b3ecf4069/d0ra00005a-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/52e69b9ab132/d0ra00005a-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/29506c88bd30/d0ra00005a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/de9053534ca1/d0ra00005a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/0e13ae9e2be4/d0ra00005a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/b600dab20a88/d0ra00005a-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/6d1f0cc30e99/d0ra00005a-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/1b67a4ae14dd/d0ra00005a-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/1f03199167de/d0ra00005a-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/63fb097f7597/d0ra00005a-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/e75b3ecf4069/d0ra00005a-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/52e69b9ab132/d0ra00005a-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/29506c88bd30/d0ra00005a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/de9053534ca1/d0ra00005a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/0e13ae9e2be4/d0ra00005a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/b600dab20a88/d0ra00005a-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/6d1f0cc30e99/d0ra00005a-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/1b67a4ae14dd/d0ra00005a-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/1f03199167de/d0ra00005a-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9639/9050510/63fb097f7597/d0ra00005a-f8.jpg

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