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Physical and Chemical Characterization of Poly(hexamethylene biguanide) Hydrochloride

1
Materials Engineering Department, Federal University of São Carlos, Rod. Washington Luiz, Km 235, 13565-205, São Carlos, Brazil
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Chemistry Department, Federal University of São Carlos, Rod. Washington Luiz, Km 235, 13565-205, São Carlos, Brazil
3
EMBRAPA Instrumentação, Rua Quinze de Novembro, 1452, 13521-206, São Carlos, Brazil
*
Author to whom correspondence should be addressed.
Polymers 2011, 3(2), 928-941; https://doi.org/10.3390/polym3020928
Received: 15 March 2011 / Revised: 29 April 2011 / Accepted: 30 May 2011 / Published: 1 June 2011
(This article belongs to the Special Issue Water-Soluble Polymers)
We present the characterization of commercially available Poly(hexamethylene biguanide) hydrochloride (PHMB), a polymer with biocidal activity and several interesting properties that make this material suitable as a building block for supramolecular chemistry and “smart” materials. We studied polymer structure in water solution by dynamic light scattering, surface tension and capacitance spectroscopy. It shows typical surfactant behavior due to amphiphilic structure and low molecular weight. Spectroscopic (UV/Vis, FT-NIR) and thermal characterization (differential scanning calorimetry, DSC, and thermogravimetric analysis, TGA) were performed to give additional insight into the material structure in solution and solid state. These results can be the foundation for more detailed investigations on usefulness of PHMB in new complex materials and devices. View Full-Text
Keywords: coatings; antimicrobial; critical micellar concentration; thermal analysis; supramolecular chemistry coatings; antimicrobial; critical micellar concentration; thermal analysis; supramolecular chemistry
MDPI and ACS Style

De Paula, G.F.; Netto, G.I.; Mattoso, L.H.C. Physical and Chemical Characterization of Poly(hexamethylene biguanide) Hydrochloride. Polymers 2011, 3, 928-941.

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