Mechanical and thermal properties of hybrid nanocomposites prepared by in situ polymerization

Paszkiewicz, Sandra; Pawelec, I.; Szymczyk, Anna; Rosłaniec, Z.

doi:10.14314/polimery.2016.172

Cited by 10 publications

(10 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The influence on the decomposition temperatures by the addition of FLG was comparable to those observed for PTT/EG [41,46] at the same nanofiller contents, however the processing methods for obtaining FLG and EG, and the chemical morphology of PTT and PTF respectively are different. Moreover, the outstanding thermal properties of graphene derivatives forms have been applied in order to improve not only the thermal and dimensional stability, but also the thermal conductivity of the host polymer.…”

Section: Thermal Characteristics Of Ptf/flg Nanocompositessupporting

confidence: 57%

“…nanocomposites Neat poly(trimethylene 2,5-furanoate) (PTF) and PTF-based nanocomposites were prepared via in situ polymerization, following the same procedure as described elsewhere for PTT based nanocomposites [41,46,50,51]. In brief, 0.1 and 0.3 wt% of FLG was dispersed in 200 mL of bio-PDO using ultrahigh speed stirrer (Ultra-Turax T25, Wilmington, NC, USA) for 15 min, and subsequently an ultrasonicator (Homogenizer HD 2200, Sonoplus (Berlin, Germany) with frequency of 20 kHz and power 200 W) for 15 min.…”

Section: Preparation Of Neat Ptf and Polymermentioning

confidence: 99%

“…It is especially wellseen in the polymer nanocomposites based on thermoplastic polyesters, like PET, PTT, PBT etc., which are engineering plastics with excellent processing characteristics and high strength and rigidity for a broad range of applications. Some studies on graphene nanoplatelets-polymer nanocomposites prepared by in situ polymerization, revealed significant improvements in electrical conductivity [40][41][42][43][44], thermal [45][46][47] and mechanical properties [42,44,46,47], and gas barrier properties [41,45]. However, Lotti et al [48] studied PEF nanocomposites containing 2.5 wt% of neat multi-walled carbon nanotubes (MWCNTs), or functionalized MWCNTs or graphene oxide (GO), that were in situ prepared by applying the melt polycondensation method.…”

mentioning

confidence: 99%

See 2 more Smart Citations

New functional nanocomposites based on poly(trimethylene 2,5-furanoate) and few layer graphene prepared by in situ polymerization

Paszkiewicz¹,

Janowska²,

Pawlikowska³

et al. 2018

Express Polym. Lett.

View full text Add to dashboard Cite

Section: Thermal Characteristics Of Ptf/flg Nanocompositessupporting

confidence: 57%

Section: Preparation Of Neat Ptf and Polymermentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

New functional nanocomposites based on poly(trimethylene 2,5-furanoate) and few layer graphene prepared by in situ polymerization

Paszkiewicz¹,

Janowska²,

Pawlikowska³

et al. 2018

Express Polym. Lett.

View full text Add to dashboard Cite

“…Moreover, PTT exhibits several advantageous properties, including superior strength, high resilience, and excellent dyeablitity, which make it suitable for the use in engineering thermoplastic applications as fibers or films. Due to the aforementioned characteristics, PTT has attracted much attention as a homopolymer, in copolymer systems, in blends, and nanocomposites . Nevertheless, in industrial research, great importance is attached to multiblock copolymers, especially those with potential applications as biomaterials, for example, to fabricate scaffold for bone cartilage, and skin tissue engineering, as antiadhesion barrier, or for textile applications and so forth .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structure, and physical properties of poly(trimethylene terephthalate)‐block‐poly(caprolactone) copolymers

Paszkiewicz

Szymczyk

Irska

et al. 2018

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

The series of poly(trimethylene terephthalate)-block-PCLT (PTT-block-PCLT) copolymers with different contents of PTT as rigid, and poly(caprolactone) (PCL) as flexible segments have been synthesized from dimethyl terephthalate (DMT), 1,3-bio-propanediol, and PCL diol) in a two-step process involving transesterification and polycondensation in the melt. The weight amount of flexible PCLT segments varied from 0 (homopolymer PTT), 25, 35 to 45%. The molecular structure of the synthesized copolymers was confirmed by nuclear magnetic resonance and Fourier transform infrared spectroscopy analyses. According to Hoy's method, one confirmed that PTT and PCL are likely miscible, as the difference of the solubility parameters of PTT and PCL block pairs, equals to 3.15 MPa 1/2 . Moreover, the phase structure and mutual miscibility for the series of PTTblock-PCLT copolymers was characterized by differential scanning calorimetry, dynamic mechanical thermal analysis, and wide-angle X-ray scattering measurements. In copolymers with 35 and 45 wt % of flexible segments, the crystalline phase is formed during annealing above glass-transition temperature of copolymer. These copolymers during cooling at the standard rate do not crystallize. It was also found that incorporation of PCLT flexible segments, due to the macrophase separated structure, cause the decrease of the melting point and glass-transition temperature, along with the tensile modulus and tensile strength of PTT-block-PCLT copolymers, and at the same time cause an increase in the value of the elongation at break. As a result of copolymerization of PTT with PCLT, one obtained multiblock copolymers with a heterophase structure. By changing the PTT/PCLT ratio, one obtained copolymers that differ in hardness and tensile strength.

show abstract

“…Nanocomposites with SWCNT and EG were prepared by in situ polymerization following the procedure described in details in . Carbon nanotubes' concentration in polymer nanocomposites varied from 0.025 to 0.5 wt %.…”

Section: Methodsmentioning

confidence: 99%

Electrical conductivity and transparency of polymer hybrid nanocomposites based on poly(trimethylene terephthalate) containing single walled carbon nanotubes and expanded graphite

Paszkiewicz

Szymczyk

Sui

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

Single-walled carbon nanotubes (SWCNT)/expanded graphite (EG)/poly(trimethylene terephthalate) (PTT) hybrid nanocomposites were prepared via in situ polymerization. Raman spectroscopy and scanning electron microscopy (SEM) were employed to determine both, purity and morphology of the nanofillers and the dispersion of nanotubes and nanosheets. The electrical and optical properties of thin polymer films based on both "single" nanocomposites and hybrid nanocomposites were studied. For PTT/ SWCNT nanocomposites, results confirmed that films optical transmittance decreases as the concentration of SWCNT increases, attaining almost no optical transmittance for 0.3 wt % of nanofiller. Conversely, the electrical conductivity of nanocomposites was found to increase by increasing the nanofiller amount and the r dc values indicate that percolation occurs at a very low SWCNT content (around 0.05 wt %). In the case of PTT/SWCNT 1 EG nanocomposites, when the content of SWCNT is 0.05%, the hybrid system presents lower conductivity than that corresponding to the "single" nanocomposite. The incorporation of additional EG to the PTT/SWCNT nanocomposite has a small effect on the electrical conductivity but inhibits the transparency of the system.

show abstract

Mechanical and thermal properties of hybrid nanocomposites prepared by in situ polymerization

Cited by 10 publications

References 3 publications

New functional nanocomposites based on poly(trimethylene 2,5-furanoate) and few layer graphene prepared by in situ polymerization

New functional nanocomposites based on poly(trimethylene 2,5-furanoate) and few layer graphene prepared by in situ polymerization

Synthesis, structure, and physical properties of poly(trimethylene terephthalate)‐block‐poly(caprolactone) copolymers

Electrical conductivity and transparency of polymer hybrid nanocomposites based on poly(trimethylene terephthalate) containing single walled carbon nanotubes and expanded graphite

Contact Info

Product

Resources

About