2009
DOI: 10.1038/nmat2405
View full text
|
Sign up to set email alerts
|

Abstract: In general, when a crystal is molten, all molecules forget about their mutual correlations and long-range order is lost. Thus, a regrown crystal does not inherit any features from an initially present crystal. Such is true for materials exhibiting a well-defined melting point. However, polymer crystallites have a wide range of melting temperatures, enabling paradoxical phenomena such as the coexistence of melting and crystallization. Here, we report a self-seeding technique that enables the generation of array… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

9
232
1
4

Year Published

2010
2010
2017
2017

Publication Types

Select...
4

Relationship

1
3

Authors

Journals

citations
Cited by 220 publications
(246 citation statements)
references
References 36 publications
9
232
1
4
Order By: Relevance
“…The fibre-like petals of these sunflowers are all similar in length, with L n ¼ 204 nm (PDI TEM ¼ 1.04). This protocol is conceptually related to 'self-seeding' in which heating leads to the selective dissolution of the most soluble crystallites 34 . Upon cooling, the solution becomes supersaturated in BCP, which then deposits epitaxially on the remaining seed crystallites in solution.…”
Section: Resultsmentioning
confidence: 99%
“…The fibre-like petals of these sunflowers are all similar in length, with L n ¼ 204 nm (PDI TEM ¼ 1.04). This protocol is conceptually related to 'self-seeding' in which heating leads to the selective dissolution of the most soluble crystallites 34 . Upon cooling, the solution becomes supersaturated in BCP, which then deposits epitaxially on the remaining seed crystallites in solution.…”
Section: Resultsmentioning
confidence: 99%
“…Such a "memory" effect is a likely consequence of identical crystal packing in these 2D structures and also the preference for similar growth rates in the different crystallographic directions (see further discussions below and in the Supplementary Information page S10). 29 We envisaged that if the 2D seeds possess a "memory" of the shape of the "parent" platelets, it should be possible to prepare 2D platelets using 2D seeds derived from platelets of different shape. We therefore explored the use of 2D seeds derived from the rectangular platelets (Fig.…”
Section: Seeded Growth Of Pfs Homopolymers With Charged End-groups Usmentioning
confidence: 99%
“…13,29 Furthermore, to our knowledge, the use of different seeds from the same polymer to induce the formation of 2D platelets of different shape via seeded growth in solution is unprecedented. Analysis by selected area electron diffraction (SAED) analysis revealed that the quasi-hexagonal disk-like and rectangular platelets (grown from 2D seedHD and 2D seedR1, respectively) have near identical ED patterns with three pairs of diffraction spots, confirming the presence of a single crystalline PFS core with monoclinic symmetry (Fig.…”
Section: Seeded Growth Of Pfs Homopolymers With Charged End-groups Usmentioning
confidence: 99%
“…At this T max , the crystalline order vanishes to an extent that the material appears isotropically from the macroscopic point of view; crystalline regions cannot be detected, neither by calorimetry, nor by nuclear magnetic resonance, nor by microscopic techniques. [37][38][39][40][41] It is still a matter of controversy whether some local chain orientation or even tiny crystallites survive under the applied melting conditions. In any case, these remaining structural entities considerably support nucleation when the material is subsequently cooled down to the respective crystallization temperature.…”
Section: Introductionmentioning
confidence: 99%