Influence of ionic liquids on the chain dynamics and enthalpy relaxation of poly(methyl methacrylate)

Abstract

Imidazolium ionic liquids (ILs) with various alkyl chain length on the cations ([Cnmim]+, n = 2, 4 and 8) and different combined anions ([TFSI]− and [PF6]−) were blended with poly(methyl...

Methyl methacrylate-modified polystyrene microspheres: an effective strategy to enhance the fluorescence of Eu-complexes

“…5(g), a wide peak observed in the range of 260–1000 cm −1 can be attributed to the stretching vibration of C–O in PMMA, while the carbonyl stretching vibration peak of PMMA is observed at 1730 cm −1 , indicating the presence of methyl formate units in PMMA. 41,42 The peaks at 2930 cm −1 and 2860 cm −1 correspond to the symmetric and asymmetric stretching vibrations of a methyl group, respectively, and prove the existence of the methyl group in PMMA. 43 In addition, the CC stretching peak can be seen in Fig.…”

Molecular dynamics and conduction mechanism of poly(vinyl chloride‐co‐vinyl acetate‐co‐2‐hydroxypropyl acrylate) terpolymer containing ionic liquid

“…Besides, ILs have a plasticizing effect on polymeric materials 14,18–22 . It was found that the T g of PMMA decreases with increasing the amounts of ILs 20,23 .…”

“…13 Other studies reported changes in the conformation of polyethylene oxide (PEO) and polymethyl methacrylate (PMMA) polymer chains due to the interaction with ILs. [14][15][16][17] Besides, ILs have a plasticizing effect on polymeric materials. 14,[18][19][20][21][22] It was found that the T g of PMMA decreases with increasing the amounts of ILs.…”

“…[14][15][16][17] Besides, ILs have a plasticizing effect on polymeric materials. 14,[18][19][20][21][22] It was found that the T g of PMMA decreases with increasing the amounts of ILs. 20,23 An adiabatic calorimeter was employed to probe the thermodynamic properties of PMMA/IL ion gel and found a drastic reduction in T g with increasing the content of IL.…”

“…For example, a small amount of ILs caused directed self‐assembly of polystyrene‐block‐poly(methyl methacrylate) (PS‐b‐PMMA) block copolymer 13 . Other studies reported changes in the conformation of polyethylene oxide (PEO) and polymethyl methacrylate (PMMA) polymer chains due to the interaction with ILs 14–17 …”