Structural formation and gelation behavior of cold-crystallized poly(trimethylene terephthalate)

Crystallization kinetics and structure evolution of a polylactic acid during melt and cold crystallization

“…In this case, the material could experience melt crystallization during injection molding and then cold crystallization during blow molding. Although a number of studies [8][9][10][11][12][13][14][15][16][17] have examined and compared the melt-and cold crystallization kinetics, the results seem to be inconsistent. Also, only a few of them have focused on the evolutions of the mobile and rigid amorphous fractions during the crystallization especially for polylactic acid (PLA) [8].…”

“…The melt-and cold-crystallization events have been investigated using either isothermal or non-isothermal experiments [8][9][10][11][12][13][14][15][16][17]. These include studies on the crystallization rate [8][9][10][11][12][13][14], the activation energy [10,14], the dimension of crystal growth [9,12,[14][15][16], and the crystal structure [17].…”

“…These include studies on the crystallization rate [8][9][10][11][12][13][14], the activation energy [10,14], the dimension of crystal growth [9,12,[14][15][16], and the crystal structure [17]. The former three parameters are generally determined from fitting the crystallinity data with theoretical models such as the well-known Avrami equation [18,19].…”

Property Modulation of Poly(trimethylene terephthalate) by Incorporation of Nonlinear Isophthalate Units

“…[1] There have been some reports on the synthesis and properties of PTT. [2][3][4][5] The crystalline structure of PTT shows a trans-gauche-gauche-trans (tggt) conformation in the trimethylene unit of its backbone chain. This conformational structure behaves like a spring, and gives the material good elastic recovery.…”

Microstructure Evolution and Dynamic Stages of Cold‐Crystallized Poly(trimethylene terephthalate) Revealed by Synchronous Fluorescence Scanning

“…As crystallization proceeds, the aggregation or propagation of sheaf-like crystallites will take place in order to reduce surface free energy, representing an outward growth of lamellar stacks prior to impingement. [44] It is worth noting that the differential curve (the dash line in Figure 3b) shows an obvious peak at 66 8C, which is the coldcrystallization temperature (T c ) of PTT. The T c corresponding to other heating rates will be mentioned in the next section.…”