Thermal and Phase Change Material Properties of Comb-Like Polyacrylic Acid-Grafted-Fatty Alcohols. Issue 4 (4th March 2018)

• Record Type: Journal Article
• Authors: Baştürk, Emre; Kahraman, Memet Vezir
• Is Part Of: Polymer-plastics technology and engineering. Volume 57:Issue 4(2018)
• Page Start: 276
• Page End: 282
• Publication Date: 2018-03-04
• Subjects: Differential scanning calorimetry -- esterification -- functional polymers -- synthesis -- thermogravimetric analysis; Polymers -- Periodicals; Polymerization -- Periodicals; Polymers -- Periodicals; Engineering -- Periodicals; Plastics -- Periodicals; 668.9
• DOI: 10.1080/03602559.2017.1326134
• Languages: English
• ISSNs: 0360-2559

Abstract

ABSTRACT: Poly(acrylic acid)-graft-fatty alcohol are synthesized from the esterification of polyacrylic acid with octadecanol and docosanol. The characterization of poly(acrylic acid)-graft-fatty alcohol was performed by attenuated total reflection–Fourier transform infrared spectroscopy. The thermal stability performances and phase change behaviors of poly(acrylic acid)-graft-fatty alcohol were examined by using thermogravimetric analysis system and differential scanning calorimetry. The results indicate that the poly(acrylic acid)-graft-fatty alcohol polymeric phase change materials possess good phase change properties and provide a suitable working temperature range. The heating process phase change enthalpy is measured between 112 and 122 J g −1, and the freezing process phase change enthalpy is found between 118 and 126 J g −1 . The decomposition of poly(acrylic acid)-graft-fatty alcohol polymeric phase change materials started at 177°C and reached a maximum of 380°C. All of the obtained poly(acrylic acid)-graft-fatty alcohol polymeric phase change materials improved latent heat storage capacity in comparison with the pristine poly(acrylic acid) polymer. With the obtained results we conclude that, these materials promise a great potential in thermal energy storage applications. GRAPHICAL ABSTRACT: