Thermal Desorption States of C[sub 60] Fullerene Molecules in Polymer Matrices

Thermal desorption of fullerene C60 from polymer matrices

“…Note here, that further increasing the C 60 concentration does not result in the growth in the intensity of C 60 desorption centered at T max 1 [15]. The intensity of C 60 desorption stages centered at T max 2 and T max 3 increase with C 60 concentration [15]. This may mean that already at 1 wt% C 60 concentration the molecularly dispersed C 60 state is saturated in PI.…”

“…Note here, that even at low concentrations of fullerene in PI matrix the structural states corresponding to the low temperature desorption stage, T max 1 , of fullerene desorption are filled up quite poorly compared to PDMS and PS. Note here, that further increasing the C 60 concentration does not result in the growth in the intensity of C 60 desorption centered at T max 1 [15]. The intensity of C 60 desorption stages centered at T max 2 and T max 3 increase with C 60 concentration [15].…”

“…5). TSD data for these samples contain an intense desorption stage at T max 3 [15]. This stage strongly prevail over the stages at T max 1 and T max 2 .…”

“…PDMS (DC-200) purchased from Fluka Chemika was used in the study. PDMS-C 60 solutions were prepared by co-dissolution PDMS and C 60 toluene solutions of rated concentration [15]. TSD experiments performed on PDMS-fullerene blend coatings are shown in Fig.…”

Thermal imidization of polyamic acid–fullerene composites: 'in situ' X-ray diffraction study

“…In particular, scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR) and thermal desorption spectrometry (TDS) studies performed in the PI/C 60 composites, suggest that C 60 can be present in different states, e.g. molecular dispersion, cluster and crystalline form [2,19,20].…”