Synthesis of solid–solid phase change material for thermal energy storage by crosslinking of polyethylene glycol with poly (glycidyl methacrylate)

Synthesis and performances of novel solid–solid phase change materials with hexahydroxy compounds for thermal energy storage

“…In most previous literatures about the research of SSPCMs, the heating/cooling rate during DSC measurement was usually set as 10 K/min [10,11,13,14,[17][18][19][20]22,26,[28][29][30]32] or 5 K/min [12,15,16,21,23,27]. As we know, the measuring conditions especially the used heating/cooling rate have significant influences on the results of DSC measurement.…”

“…Thus, synthesis of novel SSPCMs with high phase change enthalpy and low phase change temperature is a significant and pressing work. Recently, the preparation and application of polymeric SSPCMs has arose growing interests of considerable scientists [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33], and many novel polymeric SSPCMs were obtained by chemical grafting, blocking and crosslinking copolymerization using the solid frameworks as a hard segment and SLPCMs as a soft segment.…”

“…Thus, they are usually used as the phase change functional chains (soft segment) in the molecule of polymeric SSPCMs [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. Jiang et al [17] reported a series of SSPCMs by grafting polymerization in which CDA acted as the main chain and PEG with different molecular weights acted as the grafting side chain.…”

“…Other polymeric SSPCMs containing the soft segment of PEG and its derivatives such as PEG-based PU [21][22][23][24][25][26][27], PVA-graft-PEG [28], PS-graft-PEG [29], crosslinked PEG/MDI/PE [30], phenyl ethylene/TDI/MPEG [31] were successively reported. In our previous works [32,33], the crosslinked PEG-PGMA and PEG/MDI/glucose copolymers were also synthesized and characterized as novel SSPCMs. It is worth noting that only one skeleton material was used to prepare SSPCMs in every reported work mentioned above, which resulted in the same molecular structure of SSPCMs even varying the molecular weight of PEG.…”

Investigation of the effects of thermal, oxidative and irradiation treatments on the behaviour of poly-ethylene glycol as a phase change material in thermal energy storage systems

“…These composites are generally more stable and report enhanced features, such as increased temperature ranges [22], or increased conductivity [21,23], but once again at the cost of reducing the overall thermal storage density.…”