Self-assembly of complex salts formed by surfactants and random or grafted copolymers

• Grant number: 08/10980-4
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Effective date (Start): March 01, 2009
• Effective date (End): June 30, 2012
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Watson Loh
• Grantee: Ana Maria Percebom Sette da Silva
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

This project continues the process 2007/05914-0. The objective of the project is to determine the effect of different chemical structures and/or monomers on the self-assembly of the cationic surfactant hexadecyltrimethylammonium using different copolymers: P(SS-Ma), the poly(4-styrene sulfonic acid-co-maleic acid), and P(MA-MAEO), the poly(methacrylic acid-co-ethoxylated methacrylate). P(SS-Ma) was chosen because the presence of acid groups with different pKa values in the anionic copolymer allowed the preparation of complex salts with a variable fraction of anionic groups neutralized by cationic surfactant in the copolymer, via controlled titration with hexadecyltrimethylammonium hydroxide, C16TAOH. Complex salts prepared from other random copolymers of P(MA-MAEO) family will ve used to investigate the effect of ethylene oxide side chains (with different lengths and in different proportions) along the anionic main chain on the hydrophilicity of the complex salt and on the structures formed. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PERCEBOM, ANA MARIA; LOH, WATSON. Controlling the phase structures of polymer/surfactant complexes by changing macromolecular architecture and adding n-alcohols. Journal of Colloid and Interface Science, v. 466, p. 377-387, MAR 15 2016. (08/10980-4)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SILVA, Ana Maria Percebom Sette da. Self-assembly of complex salts formed by surfactants and random or grafted copolymers. 2012. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Química Campinas, SP.