Thermal characterization of polycarbonate/polycaprolactone blends

Balsamo, Vittoria; Calzadilla, N.; Mora, G.; Müller, Alejandro J.

doi:10.1002/1099-0488(20010401)39:7<771::aid-polb1052>3.0.co;2-i

Cited by 56 publications

(78 citation statements)

References 28 publications

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“…Even though the literature conflicts in some aspects such as different methods used for preparing the blends, solution-or melt mixing, and the compositional variation of the glass transition, Cheung and co-workers [52] concluded that the Fox equation can only accurately predict the glass transition temperature for compositions above 70% PC and that the Braun-Kovacs expression should be used in the other range. In contrast, Balsamo et al [53] and Ketelaars et al [51] accurately described the compositional variation with the Fox equation over the entire composition range.…”

Section: Miscibility Assessmentmentioning

confidence: 99%

“…The PCL/PC blend system is an example in which homogeneous mixing of the components in the melt and in the amorphous phase, over the whole composition range, is envisaged [51][52][53][54][55][56][57]. PCL/PC blends were found to be miscible, because a single T g , that varied with composition between those of the neat components, was observed ( Figure 1).…”

Section: Miscibility Assessmentmentioning

confidence: 99%

“…Since the T g of PCL is much lower than that of PC, the T g of the blends decreased upon the addition of PCL to PC. The low T g of PCL enabled the PC to crystallize at a rate that was much higher than that for neat PC, indicating that the PCL acted as a very effective macromolecular plasticizer [51,53]. Even though PCL and PC have been reported to be miscible, some authors [50] reported partial miscibility, where two phases were formed (PC-rich and PCL-rich phases).…”

Section: Miscibility Assessmentmentioning

confidence: 99%

“…Several equations were proposed to predict the values of the glass transition temperature for miscible polymer blends [51][52][53]58]. The earliest of these equations was the Fox equation (Equation (2)): (2) where T g is the glass transition of the blend, and T gi and w i are the respective glass transitions and weight fractions of the components in the blend.…”

Section: Miscibility Assessmentmentioning

confidence: 99%

“…The melting behaviour of the components in the blend was investigated in several studies [53,54,56]. In order to evaluate the miscibility in polymer blends, the equilibrium melting temperature (T m o ) was determined [53,54].…”

Section: Melting Behaviourmentioning

confidence: 99%

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Review on PCL, PBS, and PCL/PBS blends containing carbon nanotubes

Gumede¹,

Luyt²,

Müller³

2018

Express Polym. Lett.

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Abstract. Biodegradable polymers received considerable attention due to their contribution in the reduction of environmental concerns and the realization that global petroleum resources are finite. The development of double crystalline biobased blends such as poly(ε-caprolactone) (PCL) and poly(butylene succinate) (PBS) are particularly interesting because each component has an influence on the crystallization behaviour of the other component, and thus influences the strength and mechanical properties of a polymer blend. The lack of miscibility between PCL and PBS constitutes a bottleneck, and efforts have been made to improve the miscibility through the inclusion of copolymers. Having realized that incorporating conductive nanofillers such as carbon nanotubes (CNTs), (especially when the CNTs are functionalized or used as a masterbatch i.e., polycarbonate/MWCNTs masterbatch), into biopolymer matrices, can enhance the thermal and mechanical properties, as well as electrical and thermal conductivity, a lot of research was aimed at the production of bionanocomposites. This review paper discusses the properties of PCL, PBS, their blends, and their CNTs containing nanocomposites.

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Section: Miscibility Assessmentmentioning

confidence: 99%