Thermal degradation of poly(butylene terephthalate)

Stepwise annealing of poly(butylene terephthalate)

“…However, it has been pointed out that the long-time annealing at high temperature induces degradation of the sample which results in decrease of T m and ⌬H. 23 As a matter of course, the annealing procedure listed in Table I is not a unique one.…”

Compression creep of molten poly (butylene terephthalate)

“…Then the cylinder temperature was raised to 538 K, i.e., the highest temperature at which no degradation takes place under nitrogen [9][10][11][12], to provide melt homogeneity, i.e., melting of the nuclei.…”

Effect of Azo Dyes on the Thermal Degradation of Post-consumer Polyester Fabrics

“…The main pyrolysis products are listed in Table 2, which can be studied on the basis of the pyrolysis mechanism of PET existing [3][4][5][6][7][8][9][10][11]. The initial step in PET degradation is the formation of vinyl and carboxylic acid end groups through the random ester scission from a stable six-membered ring transition state by ȕ-hydrogen transfer [ Figure 3 The decrease for the content of benzene, the ultimate product of deep pyrolysis, in red PET in contract to that of white PET illustrates the addition of azo dyes displays an inhibiting effect on the deep pyrolysis.…”