Chiral Nucleating Agents Affecting the Handedness of Lamellar Twist in the Banded Spherulites in Poly(ε-Caprolactone)/Poly(Vinyl Butyral) Blends
| Autor: | Manabu Inutsuka, Ren-Hua Jin, Toshiyuki Kataoka, Takayuki Ikehara |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Materials science
Polymers and Plastics Organic Chemistry Nucleation 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound chemistry Chemical engineering Materials Chemistry Lamellar structure Twist 0210 nano-technology Caprolactone |
| Zdroj: | ACS macro letters. 8(7) |
| ISSN: | 2161-1653 |
| Popis: | Chiral silica, which acts as a nucleating agent of poly(ε-caprolactone) (PCL), was demonstrated to induce excess handedness of lamellar twist in the banded spherulites of PCL blended with poly(vinyl butyral). The d- and l-forms of silica enhanced the right- and left-handed twists, respectively. The influences of chiral silica on the twist handedness were statistically significant. These results indicate that the handedness of twisting can be controlled upon primary nucleation. The organic substances used as chiral templates of silica had no effect on the handedness; silica was shown to govern the handedness. The possible mechanisms of the chirality transfer are discussed. |
| Databáze: | OpenAIRE |
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