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

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

doi:10.3390/polym12092017

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

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

^*Corresponding author for this work

Product Technology

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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.

Original language	English
Article number	2017
Pages (from-to)	1-18
Number of pages	18
Journal	Polymers
Volume	12
Issue number	9
DOIs	https://doi.org/10.3390/polym12092017
Publication status	Published - 3-Sep-2020

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pH-ResponsivePolyketone/5,10,15,20-Tetrakis-(Sulfonatophenyl)PorphyrinSupramolecular Submicron Colloidal StructuresFinal publisher's version, 7.75 MBLicence: CC BY

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@article{c1451dd59ea04a2e867fee51b8d7b8c7,

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

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.",

author = "Esteban Araya-Hermosilla and Ignacio Moreno-Villoslada and Rodrigo Araya-Hermosilla and Flores, {Mario E} and Patrizio Raffa and Tarita Biver and Andrea Pucci and Francesco Picchioni and Virgilio Mattoli",

year = "2020",

month = sep,

day = "3",

doi = "10.3390/polym12092017",

language = "English",

volume = "12",

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journal = "Polymers",

issn = "2073-4360",

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TY - JOUR

T1 - pH-Responsive Polyketone/5,10,15,20-Tetrakis-(Sulfonatophenyl)Porphyrin Supramolecular Submicron Colloidal Structures

AU - Araya-Hermosilla, Esteban

AU - Moreno-Villoslada, Ignacio

AU - Araya-Hermosilla, Rodrigo

AU - Flores, Mario E

AU - Raffa, Patrizio

AU - Biver, Tarita

AU - Pucci, Andrea

AU - Picchioni, Francesco

AU - Mattoli, Virgilio

PY - 2020/9/3

Y1 - 2020/9/3

N2 - 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.

AB - 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.

U2 - 10.3390/polym12092017

DO - 10.3390/polym12092017

M3 - Article

C2 - 32899443

VL - 12

SP - 1

EP - 18

JO - Polymers

JF - Polymers

SN - 2073-4360

IS - 9

M1 - 2017

ER -