The effects of grafting bisphenol A or naphthalene derivative onto polyurethane with respect to shape memory and thermal properties

Yong-Chan Chung; Areum Han; Gyeong Seok Lee; Byoung Chul Chun

Macromolecular Research, Vol.24, No.1, 90-93, January, 2016

DOI10.1007/s13233-016-4009-5 Export Citation

The effects of grafting bisphenol A or naphthalene derivative onto polyurethane with respect to shape memory and thermal properties

Yong-Chan Chung, Areum Han, Gyeong Seok Lee, and Byoung Chul Chun^{1, †}

Department of Chemistry, The University of Suwon, Hwaseong, Gyeonggi, 18323, Korea
¹School of Nano Engineering, Inje University, Gimhae, Gyeongnam, 50834, Korea

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Polyurethane (PU) polymers were grafted with bisphenol A (B series) or digydroxynaphthalene (D series) to control the molecular interactions between PU chains. As a result of graftin of rigid aromatic groups, the soft segment melting peaks were reduced and the soft segment crystallization peaks disappeared. Furthemore, the tensile strength improved due to cross-linking by the bifunctional grafted groups. The two types of PU demonstrated excellent low-temperature flexibility when compared with the unmodified PU.

[References]

Lendlein A, Kelch S, Angew. Chem.-Int. Edit., 41, 11 (2002)
Chung YC, Kim HY, Choi JW, Chun BC, J. Appl. Polym. Sci., 132, 11 (2015)
Chung YC, Kim HY, Yu JH, Chun BC, Macromol. Res., 23, 11 (2015)
Freij-Larsson C, Wesslen B, J. Appl. Polym. Sci., 50, 11 (1993)
Alves P, Coelho JFJ, Haack J, Rota A, Bruinink A, Gil MH, Eur. Polym. J., 45, 11 (2009)
Chung YC, Jo SH, Chun BC, J. Macromol. Sci. A, 52, 11 (2015)
Mondal S, Hu JL, J. Membr. Sci., 276, 11 (2006)

[1] Lendlein A, Kelch S, Angew. Chem.-Int. Edit., 41, 11 (2002)

[2] Chung YC, Kim HY, Choi JW, Chun BC, J. Appl. Polym. Sci., 132, 11 (2015)

[3] Chung YC, Kim HY, Yu JH, Chun BC, Macromol. Res., 23, 11 (2015)

[4] Freij-Larsson C, Wesslen B, J. Appl. Polym. Sci., 50, 11 (1993)

[5] Alves P, Coelho JFJ, Haack J, Rota A, Bruinink A, Gil MH, Eur. Polym. J., 45, 11 (2009)

[6] Chung YC, Jo SH, Chun BC, J. Macromol. Sci. A, 52, 11 (2015)

[7] Mondal S, Hu JL, J. Membr. Sci., 276, 11 (2006)