IS CALORIMETRY A CRUCIAL TECHNIQUE FOR STUDYING INNOVATIVE NANOMATERIALS?

Risultato della ricerca: Other

Abstract

It is well known that calorimetry is a powerful technique to determine the complete energetics of interaction processes. Unfortunately, over the years the calorimetry has been applied to restricted fields so that it has been underemployed in studying smart nanomaterials (polypseudorotaxanes, polymeric aggregates, surface functionalized nanoparticles, nanocomposites, etc.) to which a tremendous scientific interest has been recently addressed. Within this topic some relevant recent results from our laboratory will be described in the following.As concerns the supramolecular chemistry field, we exploited strategies to design stable and stimuli responsive polypseudorotaxanes based on cyclodextrins and homopolymers or block copolymers. This was done by modulating the structure of the polymer and tuning the macrocycles cavity size. The knowledge of the energetics of the cyclodextrin/polymer mixtures, determined from direct and accurate calorimetric measurements, provided not only straightforward insights to establish the stability of the complexes and the polymer phase behaviour, but also rigorous predictive tools to trigger and to control the release processes. We designed aqueous hybrid nanoclay-polymer structures that are inexpensive, biocompatible, environmental friendly and advanced for potential specific purposes. From calorimetry, the thermodynamics of the adsorption, which enabled us to interpret the behavior at the air/solution interface was determined. The nanoparticles functionalization was triggered by temperature and/or inorganic salts opening up to new routes for the synthesis of smart materials.Calorimetry and thermal analysis were revealed very efficient in studying nanocomposites based on nanoclay and biocompatible polymers. From all these studies one concludes that calorimetry plays a key role for the development of rather complex supramolecular machines and molecular devices.
Lingua originaleEnglish
Numero di pagine1
Stato di pubblicazionePublished - 2012

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Calorimetry
Nanostructured materials
Polymers
Nanocomposites
Supramolecular chemistry
Nanoparticles
Intelligent materials
Cyclodextrins
Phase behavior
Homopolymerization
Thermoanalysis
Block copolymers
Tuning
Salts
Thermodynamics
Adsorption
Air
Temperature

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title = "IS CALORIMETRY A CRUCIAL TECHNIQUE FOR STUDYING INNOVATIVE NANOMATERIALS?",
abstract = "It is well known that calorimetry is a powerful technique to determine the complete energetics of interaction processes. Unfortunately, over the years the calorimetry has been applied to restricted fields so that it has been underemployed in studying smart nanomaterials (polypseudorotaxanes, polymeric aggregates, surface functionalized nanoparticles, nanocomposites, etc.) to which a tremendous scientific interest has been recently addressed. Within this topic some relevant recent results from our laboratory will be described in the following.As concerns the supramolecular chemistry field, we exploited strategies to design stable and stimuli responsive polypseudorotaxanes based on cyclodextrins and homopolymers or block copolymers. This was done by modulating the structure of the polymer and tuning the macrocycles cavity size. The knowledge of the energetics of the cyclodextrin/polymer mixtures, determined from direct and accurate calorimetric measurements, provided not only straightforward insights to establish the stability of the complexes and the polymer phase behaviour, but also rigorous predictive tools to trigger and to control the release processes. We designed aqueous hybrid nanoclay-polymer structures that are inexpensive, biocompatible, environmental friendly and advanced for potential specific purposes. From calorimetry, the thermodynamics of the adsorption, which enabled us to interpret the behavior at the air/solution interface was determined. The nanoparticles functionalization was triggered by temperature and/or inorganic salts opening up to new routes for the synthesis of smart materials.Calorimetry and thermal analysis were revealed very efficient in studying nanocomposites based on nanoclay and biocompatible polymers. From all these studies one concludes that calorimetry plays a key role for the development of rather complex supramolecular machines and molecular devices.",
keywords = "calorimetry, nanomaterials, supramolecular systems",
author = "Giuseppe Cavallaro and Giuseppe Lazzara and Stefana Milioto",
year = "2012",
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TY - CONF

T1 - IS CALORIMETRY A CRUCIAL TECHNIQUE FOR STUDYING INNOVATIVE NANOMATERIALS?

AU - Cavallaro, Giuseppe

AU - Lazzara, Giuseppe

AU - Milioto, Stefana

PY - 2012

Y1 - 2012

N2 - It is well known that calorimetry is a powerful technique to determine the complete energetics of interaction processes. Unfortunately, over the years the calorimetry has been applied to restricted fields so that it has been underemployed in studying smart nanomaterials (polypseudorotaxanes, polymeric aggregates, surface functionalized nanoparticles, nanocomposites, etc.) to which a tremendous scientific interest has been recently addressed. Within this topic some relevant recent results from our laboratory will be described in the following.As concerns the supramolecular chemistry field, we exploited strategies to design stable and stimuli responsive polypseudorotaxanes based on cyclodextrins and homopolymers or block copolymers. This was done by modulating the structure of the polymer and tuning the macrocycles cavity size. The knowledge of the energetics of the cyclodextrin/polymer mixtures, determined from direct and accurate calorimetric measurements, provided not only straightforward insights to establish the stability of the complexes and the polymer phase behaviour, but also rigorous predictive tools to trigger and to control the release processes. We designed aqueous hybrid nanoclay-polymer structures that are inexpensive, biocompatible, environmental friendly and advanced for potential specific purposes. From calorimetry, the thermodynamics of the adsorption, which enabled us to interpret the behavior at the air/solution interface was determined. The nanoparticles functionalization was triggered by temperature and/or inorganic salts opening up to new routes for the synthesis of smart materials.Calorimetry and thermal analysis were revealed very efficient in studying nanocomposites based on nanoclay and biocompatible polymers. From all these studies one concludes that calorimetry plays a key role for the development of rather complex supramolecular machines and molecular devices.

AB - It is well known that calorimetry is a powerful technique to determine the complete energetics of interaction processes. Unfortunately, over the years the calorimetry has been applied to restricted fields so that it has been underemployed in studying smart nanomaterials (polypseudorotaxanes, polymeric aggregates, surface functionalized nanoparticles, nanocomposites, etc.) to which a tremendous scientific interest has been recently addressed. Within this topic some relevant recent results from our laboratory will be described in the following.As concerns the supramolecular chemistry field, we exploited strategies to design stable and stimuli responsive polypseudorotaxanes based on cyclodextrins and homopolymers or block copolymers. This was done by modulating the structure of the polymer and tuning the macrocycles cavity size. The knowledge of the energetics of the cyclodextrin/polymer mixtures, determined from direct and accurate calorimetric measurements, provided not only straightforward insights to establish the stability of the complexes and the polymer phase behaviour, but also rigorous predictive tools to trigger and to control the release processes. We designed aqueous hybrid nanoclay-polymer structures that are inexpensive, biocompatible, environmental friendly and advanced for potential specific purposes. From calorimetry, the thermodynamics of the adsorption, which enabled us to interpret the behavior at the air/solution interface was determined. The nanoparticles functionalization was triggered by temperature and/or inorganic salts opening up to new routes for the synthesis of smart materials.Calorimetry and thermal analysis were revealed very efficient in studying nanocomposites based on nanoclay and biocompatible polymers. From all these studies one concludes that calorimetry plays a key role for the development of rather complex supramolecular machines and molecular devices.

KW - calorimetry

KW - nanomaterials

KW - supramolecular systems

UR - http://hdl.handle.net/10447/71276

M3 - Other

ER -