Influence of surface interactions on the dynamics of the glass former ortho-terphenyl confined in nanoporous silica

Slow dynamics in cylindrically confined colloidal suspensions

“…Not surprisingly, the smaller particles are more mobile than the large ones. Our directly observed gradient in mobility is similar to that inferred from experiments on small molecule glasses [50][51][52], polymer glasses [53], and seen directly in simulations [30,31,54]. Our data show that the mobility changes over a distance of several particle diameters.…”

Manipulating the physical states of confined ibuprofen in SBA-15 based drug delivery systems obtained by solid-state loading: Impact of the loading degree

“…This is the signature of two glass transitions of amorphous IBP under confinement, as previously observed for IBP 26 and triton X-100 44 , both systems confined in SBA-15 matrices with 6 nm pore mean diameter. This double Cp jump behavior has been also observed in different type of pores; ortho-terphenyl confined into disordered silica matrix 45 (CPG) or benzyl derivative of ibuprofen confined within aluminum oxide 46 This is the author's peer reviewed, accepted manuscript. However, the online version of record will be different from this version once it has been copyedited and typeset.…”

Dynamic mechanical analysis of confined glass-forming liquids

“…In their pioneer work on the hindered glass transition, Jackson and McKenna [6] used OTP to show a downshift of T g $ 1/d in pores of CPG of mean diameter d. Other calorimetric setups yielded similar behaviour in different host matrices: Gelsil [10], MCM-41 and SBA-15 [9]. A recent work by Quellec et al [29] shows a strong influence of surface interaction in SBA-15 matrices, even displaying an upshift of T g in untreated pores. This is in contrast to the studies by former authors which report distinct downshifts in untreated pores.…”