Viscoelastic behavior of fullerene end-capped linear polymers

Effect of concentration and temperature on the rheological behavior of collagen solution

“…Table 1 shows the slopes of log G and log G versus log ω decreased approximately with the increase of collagen concen- tration. In addition, the slopes of curves log ω − log G and log ω − log G was no more than 0.8 and 0.6, respectively, compared to a typical slope of 2 and 1 for homo-polymers or Newtonian fluids [15,16]. Therefore, as a natural polymer, collagen had a significant difference with other synthetic homopolymers and its non-Newtonian behavior might be influenced by the long polypeptide chain and the high molecular weight (300 kDa).…”

Dependence of microstructures and melt behaviour of polypropylene/fullerene C60 nanocomposites on in situ interfacial reaction

“…In contrast, little attention was paid to the effect of C 60 on melt reactions and the rheological behaviour of polymers. 22,23 Experimental Materials Additive-free isotactic polypropylene (PP) powder (MFR ¼ 2.0 g (10 min) À1 ) was supplied by Daqing Petrochemical Corporation, China. C 60 (purity: 99.9%) was purchased from Yongxin Technology CO., Ltd, China.…”

Alternatively linking fullerene and conjugated polymers

“…The chemistry of fullerene and its incorporation into macromolecules has evolved to yield a considerable number of structures over recent years 1. The major stimulation for this effort has been the possibility of combining the electronic,2 optoelectronic,3 superconducting,4 and even biological5 properties of C 60 with the beneficial characteristics of polymers, such as their mechanical strength and ease of manipulation 6. These benefits may be multiplied when devising copolymers because of their tendency to form nanoscale domains of like‐polymers in well‐ordered microstructures 7–9.…”