Preparation and temperature-responsive behavior of crosslinked polymers between poly(N-isopropylacrylamide) and natural rubber

Nuntahirun, Pattaraporn; Yamamoto, Oraphin; Paoprasert, Peerasak

doi:10.1007/s13233-016-4114-5

Cited by 10 publications

(6 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…). It is found that the NR sample shows contact angles of around 95–110° through the pH range used in this experiment, consistent with previous reports . The slight increase in contact angle is possibly due to the interaction with the surface protein of the latex.…”

Section: Resultssupporting

confidence: 92%

“…It is found that the NR sample shows contact angles of around 95-110 ∘ through the pH range used in this experiment, consistent with previous reports. 8,27 The slight increase in contact angle is possibly due to the interaction with the surface protein of the latex. The P4VP-NR samples show an abrupt increase in contact angle from 28 ∘ to 80 ∘ when the pH is changed from 2 to 4.…”

Section: Ph Responsivenessmentioning

confidence: 99%

“…The Tiller group found that the shape‐memory properties of crosslinked NR can be triggered using solvent vapour, temperature or mechanical force . Recently, our group reported the preparation of temperature‐responsive NR via crosslinking reaction between poly( N ‐isopropylacrylamide) and NR . These stimuli‐responsive materials can be used in numerous potential applications, for example in biomedical and sensing devices.…”

Section: Introductionmentioning

confidence: 99%

“…25,26 Recently, our group reported the preparation of temperature-responsive NR via crosslinking reaction between poly(N-isopropylacrylamide) and NR. 27 These stimuli-responsive materials can be used in numerous potential applications, for example in biomedical and sensing devices. Nonetheless, to the best of our knowledge, pH-responsive NR materials have never been reported.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Preparation of pH‐responsive crosslinked materials from natural rubber and poly(4‐vinylpyridine)

Sansuk

Phetrong

Paoprasert

2017

Polymer International

Self Cite

View full text Add to dashboard Cite

Stimuli‐responsive elastomers are smart materials for sensing applications. Natural rubber (NR) is a renewable elastomer with excellent elasticity and fatigue resistance. In this work, a straightforward method for the preparation of pH‐responsive crosslinked materials from NR and poly(4‐vinylpyridine) (P4VP) via free radical crosslinking reaction using benzoyl peroxide (BPO) as an initiator is described. The effects of P4VP and BPO concentrations, reaction time and reaction temperature on immobilization percentage were investigated. It was found that the immobilization percentage reached 90% when using a P4VP concentration of 150 phr and a BPO concentration of 10 phr for 24 h at 90 °C. The pH responsiveness of the crosslinked materials was studied via water swelling, water contact angle and dye release measurements. Unlike unmodified rubber, the P4VP‐crosslinked NR was found to be pH‐responsive in acidic solution. Indigo carmine adsorption studies showed the Langmuir isotherm suggesting monolayer coverage of dye on the rubber surface. The dye could also be released upon increasing the pH of solution above 4. Based on these results, the introduction of pH responsiveness to NR will lead to novel responsive rubber‐based materials that can be used in biomedical and sensing applications. © 2016 Society of Chemical Industry

show abstract

Section: Resultssupporting

confidence: 92%

Section: Ph Responsivenessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation of pH‐responsive crosslinked materials from natural rubber and poly(4‐vinylpyridine)

Sansuk

Phetrong

Paoprasert

2017

Polymer International

Self Cite

View full text Add to dashboard Cite

show abstract

“…pH‐responsive materials are those that can change their physical and chemical properties, such as hydrophobicity and hydrophilicity, via protonation and deprotonation of labile functional groups. Recently, our group reported the preparation of temperature‐ and pH‐responsive crosslinked natural rubbers via crosslinking reaction using polyisopropylacrylamide and poly(4‐vinylpyridine), respectively . However, these crosslinked materials were not soluble in any organic solvents, making them difficult to process for further uses.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional, pH-responsive graft copolymer prepared from deproteinized natural rubber and 4-vinylpyridine via emulsion polymerization

et al. 2017

Self Cite

View full text Add to dashboard Cite

We investigated the synthesis of a pH-responsive graft copolymer of natural rubber and 4-vinylpyridine. The grafting reaction was carried out using deproteinized natural rubber (DPNR) latex, with potassium persulfate as a free radical initiator. The pH responsiveness of the graft copolymer was investigated using water swelling and contact angle measurements, and was compared with that of pure DPNR. The graft copolymer was found to become responsive in solution at a pH of around 4. Indigo carmine adsorption studies identified the Langmuir isotherm, suggesting monolayer coverage. The adsorbed indigo carmine, a model anionic drug, and carbon dots, an emerging nanosized fluorophore, could be released from the graft copolymer by lowering the pH of the solution. The graft copolymer was tested as a heavy metal adsorbent, and demonstrated selectivity to copper(II) ions. The graft copolymer of 4-vinylpyridine and DPNR developed in this study is therefore a multifunctional, pH-responsive material with a wide range of potential applications, including sensing and catalysis, as a biomedical material and as an adsorbent.

show abstract

Temperature-responsive N-isopropylacrylamide-grafted natural rubber

2017

View full text Add to dashboard Cite

Preparation and temperature-responsive behavior of crosslinked polymers between poly(N-isopropylacrylamide) and natural rubber

Cited by 10 publications

References 35 publications

Preparation of pH‐responsive crosslinked materials from natural rubber and poly(4‐vinylpyridine)

Preparation of pH‐responsive crosslinked materials from natural rubber and poly(4‐vinylpyridine)

Multifunctional, pH-responsive graft copolymer prepared from deproteinized natural rubber and 4-vinylpyridine via emulsion polymerization

Temperature-responsive N-isopropylacrylamide-grafted natural rubber

Contact Info

Product

Resources

About