scholarly journals Preparation of glycoside polymer micelles with antioxidant polyphenolic cores using alkylated poly(arbutin)s

RSC Advances ◽  
2019 ◽  
Vol 9 (14) ◽  
pp. 7777-7785 ◽  
Author(s):  
Ayaka Seto ◽  
Rika Kajiwara ◽  
Jaeeun Song ◽  
Eeseul Shin ◽  
Byeong-Su Kim ◽  
...  
Keyword(s):  
Chain Length ◽  
Alkyl Chain ◽  
Micelle Formation ◽  
Alkyl Chain Length ◽  
Degree Of Substitution ◽  
Polymer Micelles ◽  
Long Chain

This paper describes the synthesis of long-chain-alkylated poly(arbutin)s (poly(Arb)-Rx, where R = alkyl-chain length and x = degree of substitution (DS)) and their aqueous micelle formation.

Effects of Alkyl Chain Length on Synergetic Adsorption and Micelle Formation in Homologous Cationic Surfactant Mixtures

Langmuir ◽  
2005 ◽  
Vol 21 (18) ◽  
pp. 8131-8137 ◽  
Author(s):  
Hiroki Matsubara ◽  
Takayuki Nakano ◽  
Takashi Matsuda ◽  
Takanori Takiue ◽  
Makoto Aratono
Keyword(s):  
Chain Length ◽  
Cationic Surfactant ◽  
Alkyl Chain ◽  
Micelle Formation ◽  
Alkyl Chain Length ◽  
Surfactant Mixtures

Effect of Alkyl Chain Length and Degree of Substitution on the Complexation of Sulfoalkyl Ether β-Cyclodextrins with Steroids

1997 ◽  
Vol 86 (2) ◽  
pp. 220-224 ◽  
Author(s):  
Vahid Zia ◽  
Roger A. Rajewski ◽  
Esteban R. Bornancini ◽  
Ernestina A. Luna ◽  
Valentino J. Stella
Keyword(s):  
Chain Length ◽  
Alkyl Chain ◽  
Alkyl Chain Length ◽  
Degree Of Substitution

scholarly journals Moisture tolerant solar cells by encapsulating 3D perovskite with long-chain alkylammonium cation-based 2D perovskite

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Bhushan P. Kore ◽  
Wei Zhang ◽  
Billy W. Hoogendoorn ◽  
Majid Safdari ◽  
James M. Gardner
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Chain Length ◽  
Alkyl Chain ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Alkyl Chain Length ◽  
Environmental Stability ◽  
Alkylammonium Cation ◽  
Long Chain

AbstractLong-term stability is an essential requirement for perovskite solar cells to be commercially viable. Encapsulating 3D perovskites with 2D perovskite structures is an effective strategy for improving resistance to moisture. However, long-chain alkylammonium cation-based 2D perovskites have been rarely studied in solar cells. Here, we study three different alkyl chain length organic cation-based 2D perovskite coatings for 3D perovskites. The 2D perovskite incorporated solar cells show significant improvement in solar cell stability with limited compromise in solar cell efficiency, with the longest alkyl chain length sample showing only a 20% drop in power conversion efficiency after 6 months at a relative humidity of 25-80%, and could be completely immersed in water for a few minutes before degradation started. The 2D perovskite coating also mitigated non-radiative recombination in the light-absorbing 3D perovskite, leading to an enhancement in the open circuit voltage. These findings suggest that long-chain alkylammonium cation based 2D perovskites can improve the environmental stability of 3D based perovskites without significant losses to device performance.

scholarly journals Effect of the alkyl chain length on micelle formation for bis(N-alkyl-N,N-dimethylethylammonium)ether dibromides

2019 ◽  
Vol 22 (5) ◽  
pp. 386-392 ◽  
Author(s):  
Bogumil Brycki ◽  
Adrianna Szulc ◽  
Hanna Koenig ◽  
Iwona Kowalczyk ◽  
Tomasz Pospieszny ◽  
...  
Keyword(s):  
Chain Length ◽  
Alkyl Chain ◽  
Micelle Formation ◽  
Alkyl Chain Length

scholarly journals Long Chain Imidazolium Ionic Liquids as Templates in the Formation of Mesoporous Silica Nanospheres

2020 ◽  
Vol 301 ◽  
pp. 209-216
Author(s):  
Eleen Dayana Mohamed Isa ◽  
Haslina Ahmad ◽  
Mohd Basyaruddin Abdul Rahman
Keyword(s):  
Ionic Liquids ◽  
Mesoporous Silica ◽  
Chain Length ◽  
Alkyl Chain ◽  
Mesoporous Silica Nanoparticles ◽  
High Specific Surface Area ◽  
Alkyl Chain Length ◽  
Silica Nanospheres ◽  
Long Chain ◽  
Mesoporous Silica Nanospheres

Mesoporous silica material was first discovered by Mobil research group in 1990s. Its nanoscale form is favorable due to their properties such as high specific surface area, tunable sizes and easy surface functionalization. Mesoporous silica nanoparticles (MSNs) is commonly synthesize through condensation of silica source in the presence of templates. Two most commonly used templates are cetyltrimethylammonium bromide (CTAB) and polymer PF-127. However, in these recent years, new templates were discovered and one of it is ionic liquids (ILs). ILs are salt that has melting point below 100 °C and its core structure is similar to CTAB which consist of large organic cations and inorganic or organic anions. Therefore, it has the potential to serve as alternative template in formation of MSNs. This work reported usage of two long chain imidazolium ILs as template in the synthesis of monodispersed mesoporous silica nanospheres (MNSs). The effect of imidazolium ILs alkyl chain length on properties of MNSs were investigated. It was found that particle size of MNSs decreases with alkyl chain length of imidazolium ILs. The porosity of the MNSs were further analyzed through nitrogen sorption analysis where the surface areas were 570.61 and 598.71 m2 g-1 and pore volume up to 1.4 cm3 g-1.

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