Polyurea films prepared by interfacial polymerization on a paper surface: sustained release of N,N-diethyl-3-methylbenzamide

Ichiura, Hideaki; Ohtani, Yoshito

doi:10.1007/s00289-015-1426-0

Cited by 10 publications

(5 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rapid polymerization reaction could be scaled to a continuous process, as has been demonstrated in the case of thin film composite (TFC) membranes for desalination technologies, wherein thin polymer films are produced at liquid-liquid interfaces. [18,40] Additionally, the process is viable for any stepgrowth reaction and can be adapted to various polymer types such as polyesters, [41] polyureas, [42] or polyimides, [43] opening new ranges of accessible properties and potential applications. The CNT-aramid composites described here feature improved mechanical properties and high thermal stability, making them suitable candidates for applications such as electromagnetic shielding.…”

Section: Discussionmentioning

confidence: 99%

In Situ Interfacial Polymerization: A Technique for Rapid Formation of Highly Loaded Carbon Nanotube‐Polymer Composites

Chazot

Jons

Hart

2020

Adv Funct Materials

View full text Add to dashboard Cite

Composites of polymers and organized carbon nanotube (CNT) networks have been proposed as next-generation lightweight structural materials, yet polymer infiltration of CNT networks often results in stress-concentrating heterogeneities, due to local CNT aggregation or incomplete infiltration. Herein, it is demonstrated that dense CNT-polymer composites with tailored polymer distribution can be obtained by interfacial polymerization (IP), performed in situ within CNT networks. Three regimes of the in situ interfacial polymerization (ISIP) process are identified: a reaction-limited regime where the polymer forms beads on the CNTs; a uniformly-filled regime with polymer throughout the CNT network; and a transport-limited regime with polymer only near the outer surface of the network. Uniform polyamide-CNT composite sheets obtained by this method have a Young's modulus of 31 GPa and a tensile strength of 776 MPa, which is a twofold increase compared to the pristine CNT sheets. Premature failure of the composites is attributed to large voids in the pristine CNT sheets, suggesting that further improved mechanical properties can be achieved with a more homogeneous CNT network. Nevertheless, the rapid rate and overall controllability of ISIP suggest its viability for formation of polymers within CNT networks via roll-to-roll methods.

show abstract

Section: Discussionmentioning

confidence: 99%

In Situ Interfacial Polymerization: A Technique for Rapid Formation of Highly Loaded Carbon Nanotube‐Polymer Composites

Chazot

Jons

Hart

2020

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…To prepare an oil‐in‐water emulsion and the BKC‐MIP polymer [Figure (A)], the mixture was agitated at 400 rpm with a magnetic stirrer for 10 min at 60 °C. To prepare the PA film on the paper surface [Figure (B)], filter paper (30 mm × 30 mm, pore size 5 μm) impregnated with the oil‐in‐water emulsion was immersed in 10 mL of a cyclohexane solution of TC (0.1 g) at 25 °C for 10 min, and then air‐dried at room temperature for 1 h. According to our earlier research, a reaction time of 10 min was sufficient for preparation of polyamide on the paper surface …”

Section: Expeerimentalmentioning

confidence: 99%

“…Consequently, smart papers without binders are required. We recently investigated a number of methods for preparing smart papers without either microencapsulation or a binder, including preparing a smart paper using interfacial polymerization on the paper surface . This technique is desirable for fixing an insecticide on a smart paper.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a temperature‐responsive smart paper using a molecularly imprinted polymer and lipid bimolecular membrane

Kawahara

Ichiura

Ohtani

2016

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

A smart paper that provided sustained release of benzalkonium chloride (BKC) at a set temperature was prepared. Filter paper impregnated with an oil‐in‐water emulsion containing BKC, methyl methacrylate monomer, ethylene diamine, and 2,2‐azobis(2,4‐dimethylvaleronitrile) was immersed in a cyclohexane solution of terephthaloyl chloride. A polyamide film containing the BKC MIP was formed on the paper surface via an interfacial polymerization reaction. Dimethlydistearylammonium bromide (DDB) was then coated over the polyamide film. The interfacial polymerization reaction eliminated the need for preparation of microcapsules of BKC or coating of the paper with a binder, which are methods commonly used for preparation of smart papers. Release of BKC from the paper was studied, and the temperature responses obtained with the DDB coating were evaluated. The smart paper with the BKC MIP and DDB coating showed sustained release of BKC, and this function was obtained in response to a certain temperature. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44530.

show abstract

“…3 Polyamides 4 and polyureas 5 are widely used for preparing thin or unimolecular lms using interfacial polymerization due to their high exibility and thermal stability. 6,7 Interfacial polymerization is a process involving polycondensation of reactants at the interface of two immiscible phases (i.e. air/water or liquid-liquid) under normal conditions of temperature and pressure to yield a thin dense polymer lm.…”

Section: Introductionmentioning

confidence: 99%

Oriented perylene incorporated optically anisotropic 2D silica films

et al. 2017

View full text Add to dashboard Cite

show abstract

Polyurea films prepared by interfacial polymerization on a paper surface: sustained release of N,N-diethyl-3-methylbenzamide

Cited by 10 publications

References 30 publications

In Situ Interfacial Polymerization: A Technique for Rapid Formation of Highly Loaded Carbon Nanotube‐Polymer Composites

In Situ Interfacial Polymerization: A Technique for Rapid Formation of Highly Loaded Carbon Nanotube‐Polymer Composites

Preparation of a temperature‐responsive smart paper using a molecularly imprinted polymer and lipid bimolecular membrane

Oriented perylene incorporated optically anisotropic 2D silica films

Contact Info

Product

Resources

About