A third problem is that the structure of cellulose is actually more complicated than the two-phase model (crystalline and amorphous) indicates.
The solid-state NMR of pretreated pine wood showed a decrease in signal intensities at both the C-6 and C-4 peaks of amorphous cellulose, indicating preferential degradation of the amorphous regions during the pretreatment.
In contrast to the Bi-Fe78B13Si9 couples, a much more intimate contact was observed for the solidified Sn drops on the amorphous substrates, indicating strong interfacial bonding.
High potency composition glass transition temperatures (Tg) correlated with predicted Tg's from the Gordon–Taylor equation, however, recrystallization exotherms revealed pure amorphous regions indicating that phase separation occurred during particle formation.
The value of △ T increases with (Ni + Al) contents in Zr Cu Ni Al TFMG across the whole amorphous region, indicating that the thermal stability is improved and higher hardness is thus achieved.
According to the report by De Witte De Witteetet al. 1995), the Al pen) usually exists in the interface between silica and alumina or in the amorphous silica alumina, indicating that the local arrangement of aluminum atoms in Al2O3-grafted materials was different from that in bulk γ-Al2O3.
The introduction of the TS-1 zeolite in the PBS matrix was not significantly affected by changes in the size of the long period, lamella thickness, or the amorphous region, indicating that PBS chains do not penetrate into zeolite pores, as confirmed by SAXS profiles.
The spectra of cellulose IIII prepared at 130°C show higher C4 crystalline peaks and much lower C4 amorphous peaks, indicating that the CI of each cellulose IIII sample increased at 130°C (Tables 3 and 4).
Notably, the reduced amount of crystalline cellulose measured in ccr1, f5h1, and comt mutants was not accompanied by differences in glucose content in the TFA extract that could have been, partially, attributed to increases in amorphous cellulose, indicating that the ccr1, f5h1, and comt mutants indeed had lower levels of total cellulose.
