Mesomorphic ionic hyperbranched polymers: effect of structural parameters on liquid-crystalline properties and on the formation of gold nanohybrids

Nguyen, Hong Hanh; Serrano, Clara Valverde; Lavedan, Pierre; Goudounèche, Dominique; Mingotaud, Anne‐Françoise; Viguerie, Nancy Lauth‐de; Marty, Jean‐Daniel

doi:10.1039/c3nr05913h

Cited by 15 publications

(17 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among the numerous available HPs, amine-or sulfur-containing HPs are widely used due to their stronger interaction with metal NCs. [320][321][322][323][324][325] Based on the specific properties of the metallic elements themselves, the corresponding metal NCs have been widely used as catalysts, [320][321][322][323] disinfectants, 324 sensors, 325,326 and so on. Without the undesired aggregation, they exhibited high catalytic activity and good reusability.…”

Section: Hp-stabilized Nanocrystalsmentioning

confidence: 99%

Hyperbranched polymers: advances from synthesis to applications

et al. 2015

View full text Add to dashboard Cite

Hyperbranched polymers (HPs) are highly branched three-dimensional (3D) macromolecules. Their globular and dendritic architectures endow them with unique structures and properties such as abundant functional groups, intramolecular cavities, low viscosity, and high solubility. HPs can be facilely synthesized via a one-pot polymerization of traditional small molecular monomers or emerging macromonomers. The great development in synthetic strategies, from click polymerization (i.e., copper-catalyzed azide-alkyne cycloaddition, metal-free azide-alkyne cycloaddition, strain-promoted azide-alkyne cycloaddition, thiol-ene/yne addition, Diels-Alder cycloaddition, Menschutkin reaction, and aza-Michael addition) to recently reported multicomponent reactions, gives rise to diverse HPs with desirable functional/hetero-functional groups and topologies such as segmented or sequential ones. Benefiting from tailorable structures and correspondingly special properties, the achieved HPs have been widely applied in various fields such as light-emitting materials, nanoscience and technology, supramolecular chemistry, biomaterials, hybrid materials and composites, coatings, adhesives, and modifiers. In this review, we mainly focus on the progress in the structural control, synthesis, functionalization, and potential applications of both conventional and segmented HPs reported over the last decade.

show abstract

Section: Hp-stabilized Nanocrystalsmentioning

confidence: 99%

Hyperbranched polymers: advances from synthesis to applications

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Branched thermotropic liquid crystals were successfully obtained from ionic interactions between hyperbranched poly(amido amine) (HYPAM) and sodium dodecylsulfate by H. H. Nguyen et al 96 Polarized optical microscopy, differential scanning calorimetry, and small-angle X-ray scattering showed the complex formation of columnar rectangular and lamellar thermotropic mesophases. The liquid crystalline phase was then used for the in situ formation of gold nanoparticles.…”

Section: Hyperbranched Poly(amido Amine)s (Hpaas)mentioning

confidence: 99%

Dendritic nanocarriers based on hyperbranched polymers

2015

View full text Add to dashboard Cite

Hyperbranched polymers are obtained through one-step polymerization reactions and exhibit properties that are very similar to those of perfect dendrimer analogues. Therefore, hyperbranched polymers are a suitable alternative for perfect dendrimers as building blocks for dendritic nanocarrier systems. With regard to using soluble hyperbranched polymers as carrier systems, their flexible chains are a major benefit as they can adopt and compartment guest molecules. Upon encapsulation, the properties of the host decides the fate of the guest, e.g., solubility, but the host can also shield a guest from the environment and protect it, e.g., from degradation and deactivation. With regard to the advantages of using hyperbranched polymers as nanocarrier systems and their scalable synthesis, we will discuss different types of hyperbranched polymers and their application as nanocarrier systems for drugs, dyes, and other guest molecules.

show abstract

“…Ag NPs (5-30 nm) Barmatov et al (2004) Ag Nps (5 nm) Dasgupta et al (2013) Au NPs (3-50 nm) Gascon et al (2005) AuNPs (2-5 nm) Nguyen et al (2014) ZnO Nanoworms Nanowires Saliba et al (2011Saliba et al ( , 2012 and Table 21.1). A silver-olefin complex was first mixed with a solution of polymer in THF and the solvent was then evaporated.…”

Section: Solvent-free In Situ Formation Of Nanoparticles/ Liquid Crysmentioning

confidence: 96%

“…21.11, either nano-worm-like or nano-wire structures were grown C or isotropic at 63 C) and of the molar mass of the hyperbranched complex: three hyperbranched polymers with increasing molar masses (HYPAM 3, HYPAM4 and HYPAM 5) and the same level of functionalization (100 %) with dodecyl sulfate were studied namely HYPAM3-DS100, HYPAM4-DS100 and HYPAM5-DS100. Adapted from Nguyen et al (2014) in branched LC and hyperbranched LC. They exhibited an average width of 2.5 AE 0.2 and 2.7 AE 0.4 nm, respectively.…”

Section: Effect Of Lc Organization On Nanoparticles Growthmentioning

confidence: 98%

“…Nguyen et al (2014) have used branched thermotropic liquid crystals obtained from the ionic interactions between hyperbranched polyamidoamine of different molar masses and a surfactant (sodium dodecyl sulfate). These ionic complexes presented columnar and lamellar phases and these phases were used to generate gold NPs in situ.…”

Section: Effect Of Lc Organization On Nanoparticles Growthmentioning

confidence: 99%

See 1 more Smart Citation