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7935667 
Journal Article 
Physical and Chemical Characterization of Poly(hexamethylene biguanide) Hydrochloride 
de Paula, GF; Netto, GI; Mattoso, LHC 
2011 
1 
Polymers
ISSN: 2073-4360 
3 
2 
928-941 
English 
WOS:000208601500017 
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. 2011 by the authors. 
coatings; antimicrobial; critical micellar concentration; thermal analysis; supramolecular chemistry