Imidazolium bromide derivatives of poly(isobutylene-co-isoprene): A new class of elastomeric ionomers

Parent, J. Scott; Porter, Anthony M.J.; Kleczek, Monika R.; Whitney, Ralph A.

doi:10.1016/j.polymer.2011.10.021

Cited by 35 publications

(46 citation statements)

References 36 publications

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“…The hydrophobicity of imidazole ring at neutral pH has been mentioned in the literature . The QIm copolymers are amphiphilic since the PS segments have hydrophobic nature . Typical size distribution functions f ( R h ) versus hydrodynamic radius R h (nm) for QIm polymers in aqueous solutions (C = 10 −3 g mL −1 , pH = 7) for scattering angle of 90° is presented in Figure .…”

Section: Self‐assembly Studies Of Qim Polymers In Aqueous and Pbs Solmentioning

confidence: 98%

Imidazolium Quaternized Polymers Based On Poly(Chloromethyl Styrene) and their Complexes with FBS Proteins and DNA

Vlassi

Pispas

2015

Macromol. Chem. Phys.

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A novel series of imidazolium quaternized polymers based on poly(chloromethyl styrene) has been designed and synthesized, using nitroxide mediated polymerization and post‐polymerization functionalization. They are characterized by ATR‐FTIR (attenuated total reflectance‐Fourier transform infrared spectra) and 1H NMR in terms of functional groups and composition, which indicate the success of the synthetic scheme utilized. The solution behavior of the quaternized polymers has been investigated in water, phosphate buffer saline (PBS), and PBS(90%)‐FBS(10%) (fetal bovine serum) by static, dynamic, and electrophoretic light scattering. The functionalized polymers have been studied in terms of structure and stability during changes in temperature and ionic strength of their aqueous solutions. The copolymers form stable aggregates with positive surface charge. All cationic polymers are found to interact extensively with DNA via electrostatic interactions, forming stable complexes at certain ratios of the components.

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Section: Self‐assembly Studies Of Qim Polymers In Aqueous and Pbs Solmentioning

confidence: 98%

Imidazolium Quaternized Polymers Based On Poly(Chloromethyl Styrene) and their Complexes with FBS Proteins and DNA

Vlassi

Pispas

2015

Macromol. Chem. Phys.

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“…RTILs have also become widely used in microwave-assisted polymer chemistry (131). Ionic liquid moiety is being incorporated into elastomers to obtain modified elastomers (132,133) having special properties, following Leibler's pioneering work on developing new elastomeric material with self-healing behavior (134,135).…”

Section: Other Applications Of Ionic Liquids In Polymers Systemsmentioning

confidence: 99%

Polymerization in Ionic Liquids

Zhang

Behera

Hong

et al. 2015

Encyclopedia of Polymer Science and Technology

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Room temperature ionic liquids (RTILs) have proved over recent years to be useful and unique reaction media for a variety of chemical reactions. Faster reaction rates and better selectivities are often observed in RTILs as compared to those in common organic solvents. In addition to these advantages, the low volatility, nonflammability, and recycling potential also help RTILs become a preferred alternative reaction medium to meet environmental and other requirements. This is evidenced by the ever increasing number of papers published in this area every year and interesting and important discoveries. When conventional free radical polymerizations are carried out in RTILs, there is an increase in the propagation rate due to the high polarity of the RTIL and a decrease in the termination rate because of the high viscosity of the RTILs, and thus the overall reaction rate is greatly increased along with an increase in molecular weight. For living/controlled polymerization such as atom transfer radical polymerization and radical addition‐fragmentation and transfer, the reactions in RTILs are still controllable with faster reaction rates and easy separation of catalysts and/or ligands from the resulting polymers. Nearly all types of polymerization processes have now been successfully conducted in RTILs, often with advantageous effects.

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“…Recently, we have described the self‐healing behavior of bromobutyl rubber (BIIR) modified with imidazole . For this, BIIR was converted with 1‐butylimidazole as described first by Parent et al The imidazolium ions originated by this reaction formed a noncovalent network by ionic association, which imparts the material a pronounced self‐healing behavior. Despite the promising self‐healing, the low tensile strength and hardness resulted from the lack of the covalent network limit the practical application of the modified BIIR compound.…”

Section: Introductionmentioning

confidence: 99%

Triggering the Self‐Healing Properties of Modified Bromobutyl Rubber by Intrinsically Electrical Heating

Böhme

Sallat

et al. 2016

Macro Materials & Eng

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In this study, the development and characterization of an intrinsically self‐healable material have been reported based on bromobutyl rubber (BIIR) modified with imidazole (Im) and loaded with carbon nanotubes (CNTs) as reinforcing and electrically conducting agent. The ionic imidazolium groups facilitate an ionic network, which imparts the composites a pronounced self‐healing behavior. The cation‐π bondings between modified BIIR and CNT surface improve the rubber‐filler interaction leading to a better mechanical performance and a higher electrical conductivity of the composites. It has been demonstrated that the healing process can be accelerated by applying an electrical current across a damaged surface of a test specimen owing to the Joule heating effect. The recovery of the mechanical and electrical properties of the composites is investigated under different test conditions and specifically discussed in terms of the rubber‐filler interactions and the filler dispersion. The applied scientific approach with the exploration of the unique nature of the imidazolium modified and CNT loaded BIIR may promote developments for a new class of rubber materials for different smart and technological applications.

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Imidazolium bromide derivatives of poly(isobutylene-co-isoprene): A new class of elastomeric ionomers

Cited by 35 publications

References 36 publications

Imidazolium Quaternized Polymers Based On Poly(Chloromethyl Styrene) and their Complexes with FBS Proteins and DNA

Imidazolium Quaternized Polymers Based On Poly(Chloromethyl Styrene) and their Complexes with FBS Proteins and DNA

Polymerization in Ionic Liquids

Triggering the Self‐Healing Properties of Modified Bromobutyl Rubber by Intrinsically Electrical Heating

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