Morphology and film formation of poly(butyl methacrylate)-polypyrrole core-shell latex particles

Huijs, FM; Láng, J.

doi:10.1007/s003960000304

Cited by 31 publications

(16 citation statements)

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“…The emulsifier was dodecylbenzenesulfonic acid sodium salt (DBS; Sigma–Aldrich, St. Louis, MO) at a concentration of 1%. The mole ratio of Fe 3+ to pyrrole and to H 2 O 2 was 2:1 and 1:1, respectively, which differed from that reported in the literatures 36, 37. The polymerization was run at room temperature for 24 h under vigorous stirring.…”

Section: Methodsmentioning

confidence: 88%

Heparin dopant increases the electrical stability, cell adhesion, and growth of conducting polypyrrole/poly(L,L‐lactide) composites

Meng

Rouabhia

Shi

et al. 2008

J Biomedical Materials Res

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Polypyrrole (PPy) is a promising conductive polymer for tissue engineering and bioelectrical applications. However, its electrical conductivity deteriorates easily in aqueous conditions. Cell adhesion to PPy is also relatively poor. The goal of this study was to simultaneously improve the electrical stability of and cell adhesion to PPy by using heparin (HE) as dopant, for HE is both a polyanion and an important glycosaminoglycan in cell membranes and extracellular matrix. PPy particles doped with HE were synthesized through emulsion polymerization using Fenton's reagent as an oxidant. X-ray photoelectron spectroscopy (XPS), infrared and scanning electron microscopy (SEM) were used to investigate the PPy particles. Conductive biodegradable membranes of 10(2) to 10(3) Omega/square were prepared from 5% (w) PPy with various amounts of HE and 95% (w) poly(L,L-lactide) (PPy/PLLA). Azure A staining was employed to quantify the HE exposed on the surface of the PPy particles and PPy/PLLA membranes. The distribution of HE on membranes was demonstrated by DAPI staining. Results showed that HE was incorporated into the PPy particles as counterions and presented on particle surface. A unique "filament"-like morphology of the PPy preparation was observed at high-HE content. The electrical stability of the PPy/PLLA membranes was tested in saline at 37 degrees C for 500 h. Human skin fibroblasts were used to test the cell adhesion capacity. The conductive membranes containing HE-doped PPy particles recorded significantly increased electrical stability, cell adhesion, and growth. The electrically more stable and cell adhesive conductive biodegradable membrane may act as a platform for various biomedical applications.

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Section: Methodsmentioning

confidence: 88%

Heparin dopant increases the electrical stability, cell adhesion, and growth of conducting polypyrrole/poly(L,L‐lactide) composites

Meng

Rouabhia

Shi

et al. 2008

J Biomedical Materials Res

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“…This leads to the reflection scattering of the light decreasing. Therefore, flattening of the film, diminution of the size and of the number of the voids is the main origin of the increase in transmittance upon film annealing [30].…”

Section: Effect Of Annealing Temperature and Time On The Transparencymentioning

confidence: 99%

“…In addition, several factors are experimentally known to influence composite latex film formation: the molecular weight and its distribution, strategies to synthesize latex, morphologies of latex particles, stabililizers, surfactants, annealing, film formation conditions, etc. [27][28][29][30][31]. For example, proper shell polymers/stablilizer/surfactant (which means shell component) will assist deformation and interparticle diffusion [32,33].…”

Section: Introductionmentioning

confidence: 98%

Effect of annealing on the phase structure and the properties of the film formed from P(St-co-BA)/P(MMA-co-BA) composite latex

Yuan

Huo

Qian

2010

Journal of Colloid and Interface Science

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“…(Lascelles & Armes, 1995;Cairns & Armes 1999;Lu et al, 2003;Bousalem et al, 2003;Bousalem et al, 2004a;Bousalem et al, 2004b;Bousalem et al, 2005;Benabderrahmane et al, 2005;Mangeney et al, 2006;Yip et al, 2006;Lee et al, 2009;Wang et al, 2009). Latex particles having a poly(butyl methacrylate) (PBMA) core of about 700 nm and a very thin polypyrrole (PPy) shell were reported by Huijs & Lang 2000. Further studies illustrated the effect of the thickness of the polypyrrole shell on latex properties (Huijs et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Conducting Polypyrrole Shell as a Promising Covering for Magnetic Nanoparticles

Nan¹,

Crăciunescu²,

Turcu³

2012

Aspects on Fundaments and Applications of Conducting Polymers

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Morphology and film formation of poly(butyl methacrylate)-polypyrrole core-shell latex particles

Cited by 31 publications

References 0 publications

Heparin dopant increases the electrical stability, cell adhesion, and growth of conducting polypyrrole/poly(L,L‐lactide) composites

Heparin dopant increases the electrical stability, cell adhesion, and growth of conducting polypyrrole/poly(L,L‐lactide) composites

Effect of annealing on the phase structure and the properties of the film formed from P(St-co-BA)/P(MMA-co-BA) composite latex

Conducting Polypyrrole Shell as a Promising Covering for Magnetic Nanoparticles

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