Interfacial adhesion of nanoparticles in polymer blends by intrinsic fluorescence spectra

Yang, Jin; He, Guoshan; Zhang, B.; Luo, Weiang; Chen, X. D.; Fu, Ruowen; Zhang, M. Q.

doi:10.3144/expresspolymlett.2011.78

Cited by 4 publications

(2 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, the emission peak intensity of poly (BImBHCS-X) (X" = Br", BF 4 ", PF 6 " and TFSI") was much stronger than that of PBBHCS. This indicated that the counter-anions inserted into the polymer samples hindered the strong high-ordering packing of the side chain biphenyl mesogens, which resulted in the absence of fluorescence quenching [66][67][68][69]. The fluorescence emission spectra results were consistent with the previous results describing the structures of the MCSC-ILCPs poly(BImBHCS-X).…”

Section: The Photophysical Properties Of Mcsc-ilcps Poly(bimbhcs-x)supporting

confidence: 81%

Combined main-chain/side-chain ionic liquid crystalline polymer based on ‘jacketing’ effect: Design, synthesis, supra-molecular self-assembly and photophysical properties

Weng¹,

Xie²,

Arges³

et al. 2015

Express Polym. Lett.

View full text Add to dashboard Cite

Ionic liquid crystalline polymers (ILCPs) are a class of macromolecular architectures with mesogenic groups and ionic species and they have attracted great interest in the fields of polymer chemistry and materials science lately [1][2][3]. The combination of electrostatic interaction with liquid crystalline (LC) ordering yields ILCPs with excellent mechanical properties, rheological processability, piezoelectric performance, and optical variable performance [1][2][3][4][5][6][7]. Generally, ionic interaction promotes the ILCPs to form ionic clusters resulting in a reversible physical gelation [1,8,9]. Moreover, incorporation of the ions and selection of the type of ion chemistry can effectively improve the miscibility with other polymers. Therefore, ILCPs are versatile candidates to construct new high-performance functional mate- 536Combined main-chain/side-chain ionic liquid crystalline polymer based on 'jacketing' effect: Design, synthesis, supra-molecular self-assembly and photophysical properties Abstract. Reasonably fabricating ordered structures of ionic polymers is very important for the development of novel functional materials. By combining the ions and liquid cry stalline polymer, we successfully designed and synthesized a series of novel combined main-chain/side-chain ionic liquid crystalline polymer (MCSC-ILCPs) containing imidazolium groups and different counter-anions, poly (2,5-bis{[6-(4-butoxy-4!-imidazolium biphenyl)hexyl]oxycarbonyl}styrene salts) poly(BImBHCS-X) with the following types of counter-anions (Br", BF 4 ", PF 6 " and TFSI"). Combined technologies confirmed the chemical structures of the monomers and polymers with imidazolium cation and different counter-anions. Differential scanning calorimetry (DSC), polarized light microscopy (PLM) and one-and two-dimensional wide-angle X-ray diffraction (1D and 2D WAXD) results illustrated that the LC structures and the transitions of ordered structures depended on the nature of the counter-anion employed. The polymers with Br" and BF 4 " counter-anions exhibited smectic A (SmA) LC behavior below the isotropic temperature. The another one, poly(BImBHCS-TFSI) with the large volume of the TFSI" anion destroyed the packing of the LC ordered structure resulting in an amorphous structure. The photophysical properties of the polymers prepared can be adjusted by tuning the ionic interaction of the polymers by switching the counter-anion.

show abstract

Section: The Photophysical Properties Of Mcsc-ilcps Poly(bimbhcs-x)supporting

confidence: 81%

Combined main-chain/side-chain ionic liquid crystalline polymer based on ‘jacketing’ effect: Design, synthesis, supra-molecular self-assembly and photophysical properties

Weng¹,

Xie²,

Arges³

et al. 2015

Express Polym. Lett.

View full text Add to dashboard Cite

show abstract

“…Recently it has been suggested that the use of NPs could be an alternative to 'compatibilising' immiscible polymer pairs 31 because they affect phase separation behaviour. 32 It was supposed that the silver NPs will have a double role as an antimicrobial agent and they will improve the compatibility of PLA with plasticisers and biological polymers (HC).…”

Section: Introductionmentioning

confidence: 99%

Complex poly(lactic acid)-based biomaterial for urinary catheters: I. Influence of AgNP on properties

Raluca¹,

Bogdán

TudorachiNiţă³

et al. 2016

Bioinspired, Biomimetic and Nanobiomaterials

View full text Add to dashboard Cite

The present study focused on the development of biocompatible antimicrobial/antioxidant biodegradable bionanocomposite renewable resources based on poly(lactic acid) (PLA) plasticised with epoxidised soybean oil. To the main PLA matrix hydrolysed collagen (HC) (to enhance biocompatibility), vitamin E (as antioxidant agent) and silver (Ag) nanoparticles (NPs) (for imparting antimicrobial properties for medical applications and also for active packaging) were incorporated. The blends were produced by using the classical technological flow of melt processing.The presence of the additives in the PLA matrix improved the processability and flexibility and slightly decreased the thermal properties. The specific interactions of silver NPs with the other components of nanocomposites, mainly with HC protein and vitamin E (by ionic and other types of secondary bonds), led to a better HC and vitamin E dispersion in the samples with a higher silver content (1·5%), which further caused the enhancement of the mechanical properties for high silver NP concentration. Therefore, the silver NPs were successfully embedded into the polymer matrix. The aim of this research was to improve the flexibility, biocompatibility and functionality of PLA and to obtain bionanocomposites destined for medical applications such as catheters. This first part of research deals with mechanical and thermal characterisation correlated with morphological features. Notation d 2 dimension coefficient according with Avrami-Erofeev model E 1 ,E 2 activation energies for each step n dimensional nucleation Avrami-Erofeev reaction model n 1 ,n 2 reaction orders R correlation coefficient s thermal process in one step T 10 temperature corresponding to 10 wt% mass loss T 50 temperature corresponding to 50 wt% mass loss T cc cold crystallization temperature T g glass transition temperature T m melting temperature T onset onset temperature of each thermogravimetric step TQ 1min torque after 1 min of melt processing TQ 5min torque after 5 min of melt processing TQ fin torque at end of melt processing TQ max maximum torque value on the torque-time curve W mass loss for each thermogravimetric stage W r,500°C residual mass loss DC p specific heat capacity DH cc cold crystallization enthalpy DH m melting enthalpy

show abstract

On Localization of Clay Nanoparticles in Polypropylene/poly(Lactic Acid) Blend Nanocomposites: Correlation with Mechanical Properties

Ebadi‐Dehaghani

Khonakdar

Barikani

et al. 2016

Journal of Macromolecular Science, Part B

View full text Add to dashboard Cite

Interfacial adhesion of nanoparticles in polymer blends by intrinsic fluorescence spectra

Cited by 4 publications

References 52 publications

Combined main-chain/side-chain ionic liquid crystalline polymer based on ‘jacketing’ effect: Design, synthesis, supra-molecular self-assembly and photophysical properties

Combined main-chain/side-chain ionic liquid crystalline polymer based on ‘jacketing’ effect: Design, synthesis, supra-molecular self-assembly and photophysical properties

Complex poly(lactic acid)-based biomaterial for urinary catheters: I. Influence of AgNP on properties

On Localization of Clay Nanoparticles in Polypropylene/poly(Lactic Acid) Blend Nanocomposites: Correlation with Mechanical Properties

Contact Info

Product

Resources

About