Infinite spinning of several polyacetylene chains into long multiple helices

Li, Yunfang; Fu, Hongjin; Lu, Wei-Tao; Xu, Shuqiong; Zhang, Xueqing

doi:10.1016/j.carbon.2017.07.002

Cited by 5 publications

(2 citation statements)

References 41 publications

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“…After adhering onto the Cu NP and going on for a relative long time, Tc-PA chains tilt but kick one out to form a five-helix with the kicked one helical around outside with a larger pitch, whose plane is vertical to the surface of the five-helix. However, the spiral speed of the five-helix is slower and slower until it stops at about 40 ns, as shown in figure 6(b), which is different from the uniform spinning of Tt-PA [47]. The formation of Tc-PA is much more difficult than the other two isomers.…”

Section: Resultsmentioning

confidence: 89%

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Nanoparticle induced limitless spiral of polyacetylene isomers

Zhao

et al. 2019

Nanotechnology

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Helical nanomaterials represent an emerging group of nanostructures because of their multiple functionalities enabled by unique spiral geometry and nanoscale dimensions. This study demonstrates that several trans-transoid polyacetylene (Tt-PA) chains can self-spiral limitlessly over the whole length of polymers to form regular multiple helices under the inducement of water cluster, fullerene ball and metallic nanoparticles (NPs). Multi-helices possess random chirality selection which have equal probability of left-handedness and right-handedness. Energy components, geometric parameters and differences of helices induced by different NPs are analyzed to deeply probe the possible mechanism and the nature of the limitless spiral of the PA polymer. Furthermore, the helical self-assembly of cis-formed cis-transoid (Ct-PA) and transcisoid (Tc-PA) isomers is further studied. The spiral ability of Ct-PA is much higher, but Tc-PA is much lower than that of Tt-PA. Remarkably, Tc-PAs are always form five-helix at room temperature.

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Section: Resultsmentioning

confidence: 89%

“…In this study, based on our previous work [47], we further studied the self-assembly of all PA isomer chains comprehensively. It demonstrates that except the inner space of a short carbon nanotube, the metallic NPs, water cluster and fullerene ball can also induce the limitless spiral of six Tt-PA chains into long multiple helix.…”

Section: Introductionmentioning

confidence: 99%