Solvent-dependent nanostructures of gels of a Gemini surfactant based on perylene diimide spacer and oligostyrene tails

Dahan, Elianne; Sundararajan, P. R.

doi:10.1016/j.eurpolymj.2014.09.023

Cited by 18 publications

(17 citation statements)

References 61 publications

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“…In the above examples of hydrogen bond mediated self‐assembly of carbamates and biscarbamates and π‐interaction facilitated self‐assembly of phthalocyanines and perylenes, it was observed that molecular dispersion did not occur in polymer matrices even with very low concentrations of ∼1% (wt) because of the overwhelming association between these small molecules. This author's group has been studying the self‐assembly characteristics of perylenes tetra‐carboxylic diimides (PTCDI), with mono‐ or di‐substituted oligomeric polystyrene, PDMS or Jeffamine ® , as well as terthiophene mono‐substituted with oligostyrene . The molecular structures of these are shown in Figure .…”

Section: Introductionmentioning

confidence: 99%

Small molecule self‐assembly in polymer matrices

Sundararajan

2017

J Polym Sci B Polym Phys

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Using small molecules in polymer matrices is common in applications such as (i) plasticizing polymers to modify the glass transition and mechanical properties and (ii) dispersion of photoactive or electroactive small molecules in polymer matrices in organic-electronic devices Aggregation of these small molecules and phase separation leading to crystallization often cannot be morphologically controlled. If these are designed with self-assembling codes such as hydrogen bonding or aromatic interactions, their phase separation behavior would be distinctly different. This review summarizes the studies on morphologies in such situations, such as (i) sub-surface assembly in polymer matrices, (ii) controlled polymerizationinduced phase separation to create polymer blends, (iii) using the polymer to direct the assembly of small molecules in liquid crystalline devices, (iv) functionalizing a polymer with selfassembling small molecules to cause organo-gelation which the polymer itself would not by itself, and (v) using such systems as templates to create porous polymer structures. Organic-inorganic hybrids using polymers as templates for nanostructures and imprinted porous membranes is an emerging area. Since self-assembly is one of the dominating area of research with respect to both small molecules, polymers as well as the combination of the two, this review summarizes the studies on the aforementioned topics.

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Section: Introductionmentioning

confidence: 99%

Small molecule self‐assembly in polymer matrices

Sundararajan

2017

J Polym Sci B Polym Phys

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“…Conventional imidazolinium surfactant molecules are made up of a polar imidazolinium head group with a long hydrophobic alkyl chain whereas its corresponding Gemini surfactant is comprised of two imidazolinium surfactants joined together through a spacer group in the sequence: hydrocarbon tail/imidazolinium group/spacer/imidazolinium group/hydrocarbon tail [3]. Gemini surfactants show more extraordinary surface active properties than their conventional monomeric counterparts.…”

Section: Introductionmentioning

confidence: 99%

Waste Cooking Oil‐Based Novel Gemini Imidazolinium Surfactants With Carbonate Linkage: Green Synthesis, Characterization and Properties Evaluation

Tripathy

Mishra

2017

J Surfact & Detergents

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Imidazolinium surfactants belong to the category of cationic surfactants that have already gained the great interest of researchers due to their varied range of commercial applications. With the advancement in the field of surfactants research, imidazolinium surfactants are being converted into their corresponding gemini surfactants. Gemini surfactants are known to have exceptional selfassembling characteristics and exclusive interfacial activity that include much lower CMC and better ability to reduce surface tension than their conventional monomeric counterparts. Long reaction time associated with conventional thermal synthetic procedures and high production costs are the two major issues involved in the synthesis of gemini surfactants. The present research work involves the microwave synthesis of novel gemini imidazolinium surfactants with carbonate linkage. In order to synthesize cost effective gemini surfactants, waste cooking oils have been used as raw materials. Structural characterization of synthesized gemini surfactants has been achieved through 1 H-NMR, 13 C-NMR and FT-IR.

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“…The hydrophilic heads may be cationic, anionic and neutral or zwitter ionic in nature and the hydrophobic tail may be long or short in size. The spacer group may be polar, nonpolar, rigid or flexible (e. g. Azobenzene, Ethylene oxide, Polyoxyethylene, Methylene, Stilbene, Tetra‐carboxylic diimide etc.). Low CMC, high solubilisation capacity, unique aggregation behaviour and micelle formation, fascinating rheological properties and high surface activity of Gemini surfactants, relative to the monomeric surfactants, have made them to be focused more for many years for various purpose like genetics, cosmetics, paints, textile industries and especially for oil recovery.…”

Section: Classificationmentioning

confidence: 99%

Novel Amphiphiles and Their Applications for Different Purposes with Special Emphasis on Polymeric Surfactants

et al. 2019

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Amphiphiles or surfactants are widely known for its reducing power of interfacial tension and extraordinary rheological properties. Among the various classes of surfactants gemini surfactants, biosurfactants and polymeric surfactants are remarkable and distinguishable among the others for their structural diversity and profitable usefulness. Primarily, the performance of any surfactant can be determined by HLB (Hydrophile Lipophile Balance) value, an empirical parameter. This review attempts to clarify some of the terminology used in literature by providing illustration of classification, features and diverse applications of different surfactants.

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Solvent-dependent nanostructures of gels of a Gemini surfactant based on perylene diimide spacer and oligostyrene tails

Cited by 18 publications

References 61 publications

Small molecule self‐assembly in polymer matrices

Small molecule self‐assembly in polymer matrices

Waste Cooking Oil‐Based Novel Gemini Imidazolinium Surfactants With Carbonate Linkage: Green Synthesis, Characterization and Properties Evaluation

Novel Amphiphiles and Their Applications for Different Purposes with Special Emphasis on Polymeric Surfactants

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