Synthesis and phase transition of cellulose‐graft‐poly(ethylene glycol) copolymers

Cellulose-graft-poly(ethylene glycol) copolymers were synthesized, and the thermal properties of the copolymers were investigated. The cellulose-graft-poly(ethylene glycol) copolymers showed solid–solid phase-transition behavior with a high thermal storage density and good thermal stability in the temperature region of 25–250°C. The phase-transition temperature and enthalpy of the cellulose-graft-poly(ethylene glycol) copolymers could be adjusted through changes in the poly(ethylene glycol) content. The prepared copolymers could be used as thermal energy storage materials. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008

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