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pH响应性聚酮/5,10,15,20-四（磺化苯基）卟啉超分子亚微米胶体结构

pH-Responsive Polyketone/5,10,15,20-Tetrakis-(Sulfonatophenyl)Porphyrin Supramolecular Submicron Colloidal Structures.

作者信息

Araya-Hermosilla Esteban, Moreno-Villoslada Ignacio, Araya-Hermosilla Rodrigo, Flores Mario E, Raffa Patrizio, Biver Tarita, Pucci Andrea, Picchioni Francesco, Mattoli Virgilio

机构信息

Center for Micro-BioRobotics, Istituto Italiano di Tecnologia Viale Rinaldo Piaggio 34, 56025 Pontedera (PI), Italy.

Laboratorio de Polímeros, Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, Chile.

出版信息

Polymers (Basel). 2020 Sep 3;12(9):2017. doi: 10.3390/polym12092017.

DOI:10.3390/polym12092017
PMID:32899443
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7563153/
Abstract

In this work, we prepared color-changing colloids by using the electrostatic self-assembly approach. The supramolecular structures are composed of a pH-responsive polymeric surfactant and the water-soluble porphyrin 5,10,15,20-tetrakis-(sulfonatophenyl)porphyrin (TPPS). The pH-responsive surfactant polymer was achieved by the chemical modification of an alternating aliphatic polyketone (PK) via the Paal-Knorr reaction with N-(2-hydroxyethyl)ethylenediamine (HEDA). The resulting polymer/dye supramolecular systems form colloids at the submicron level displaying negative zeta potential at neutral and basic pH, and, at acidic pH, flocculation is observed. Remarkably, the colloids showed a gradual color change from green to pinky-red due to the protonation/deprotonation process of TPPS from pH 2 to pH 12, revealing different aggregation behavior.

摘要

在这项工作中，我们采用静电自组装方法制备了变色胶体。超分子结构由pH响应性聚合物表面活性剂和水溶性卟啉5,10,15,20-四（磺化苯基）卟啉（TPPS）组成。通过交替脂肪族聚酮（PK）与N-（2-羟乙基）乙二胺（HEDA）经由帕尔-克诺尔反应进行化学改性，得到了pH响应性表面活性剂聚合物。所得的聚合物/染料超分子体系形成亚微米级的胶体，在中性和碱性pH下显示负的zeta电位，而在酸性pH下则观察到絮凝现象。值得注意的是，由于TPPS在pH 2至pH 12之间的质子化/去质子化过程，胶体呈现出从绿色到粉红红色的逐渐变色，揭示了不同的聚集行为。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/727bfe6c5ac2/polymers-12-02017-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/7deeffcfb926/polymers-12-02017-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/cddc48123647/polymers-12-02017-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/7b006f4b8613/polymers-12-02017-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/c3f35b8ae178/polymers-12-02017-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/bf38f915d511/polymers-12-02017-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/eb71356102e8/polymers-12-02017-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/33c53072825e/polymers-12-02017-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/6818b34fd239/polymers-12-02017-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/7493ecbcedc1/polymers-12-02017-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/b36cb6f596b8/polymers-12-02017-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/79d956ecfcb4/polymers-12-02017-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/727bfe6c5ac2/polymers-12-02017-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/7deeffcfb926/polymers-12-02017-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/cddc48123647/polymers-12-02017-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/7b006f4b8613/polymers-12-02017-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/c3f35b8ae178/polymers-12-02017-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/bf38f915d511/polymers-12-02017-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/eb71356102e8/polymers-12-02017-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/33c53072825e/polymers-12-02017-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/6818b34fd239/polymers-12-02017-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/7493ecbcedc1/polymers-12-02017-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/b36cb6f596b8/polymers-12-02017-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/79d956ecfcb4/polymers-12-02017-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/320e/7563153/727bfe6c5ac2/polymers-12-02017-g012.jpg

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