In situ synthesis of polymer-modified boron nitride nanosheets via anionic polymerization

He, Zhiyan; Zhao, Jian; Li, Feixiang; Zhang, Deli; Guo, Fuhai; Guo, Hu; Wang, Xin; Hu, Haiqing

doi:10.1016/j.apsusc.2020.147966

Cited by 27 publications

(10 citation statements)

References 49 publications

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“…Then, in order to investigate the interaction between P4VP and BNNS, the fitted B 1s, N 1s and C 1s spec-tra of BNNS and BNNS-g-P4VP-AuNPs were compared systematically. As shown in Figure 3b,e [42,45,46] The shift of N 1s signal is not significant, as shown in Figure 3c,f. As reported by Jordan and co-workers, [46] such phenomenon demonstrates that the P4VP chains mainly interact with B atoms in the BNNS, and the schematic illustration of synthesis mechanism is shown in Figure S6 (Supporting Information).…”

Section: Characterization Of the Heterostructured Bnns-g-p4vp-aunps H...mentioning

confidence: 72%

“…Two strong characteristic absorption peaks located at 1378 and 812 cm −1 correspond to the bending vibrations of B-N-B bonds and the stretching vibrations of B-N bonds, respectively. In the FTIR spectrum of the BNNS-g-P4VP, the stretching vibration peak of the C-N group of P4VP at 1644 cm −1 can be observed, and the weak peak at 1150 cm −1 is associated with the stretching vibration of the newly formed B-C bond, [42,43] which indicates that the P4VP chains were covalently grafted onto the surfaces of BNNS successfully. The TEM and AFM images of BNNS-g-P4VP are shown in Figure S3 (Supporting Information), and the thickness of the grafted P4VP layer was about 6 nm.…”

Section: Characterization Of the Heterostructured Bnns-g-p4vp-aunps H...mentioning

confidence: 96%

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Fabrication of Heterostructured BNNS‐g‐P4VP‐AuNPs Hybrid Fillers with Uniform and Dense Au Nanoparticles for Enhancing Thermal Conductivity of the Nanofibrillated Cellulose

Yin

Zhang

et al. 2022

Macro Materials & Eng

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Fabrication of the metal nanoparticles decorated boron nitride nanosheets (BNNSs) is an effective method to reduce the interfacial thermal resistance between fillers and is beneficial to form thermally conductive pathways in the composite. However, due to the chemical inertness of BNNS, a large amount of metal nanoparticles is really difficult to be immobilized onto the surfaces of BNNS. To solve this problem, in this work, poly(4‐vinylpyridine) (P4VP), possessing lots of coordination sites with Au nanoparticles (AuNPs), is applied to modify the BNNS by the self‐initiated photografting and photopolymerization (SIPGP). Then, the heterostructured BNNS‐g‐P4VP‐AuNPs hybrid fillers are prepared through P4VP‐assisted metallization approach. Results demonstrate that a large amount of AuNPs with an average size of 3–5 nm is immobilized onto the surfaces of BNNS‐g‐P4VP successfully. Furthermore, the in‐plane thermal conductivity of the nanofibrillated cellulose (NFC)‐based composite film with 30 wt% BNNS‐g‐P4VP‐AuNPs can reach as high as 14.04 W m−1 K−1, due to the enhanced interfacial thermal conduction. Therefore, the proposed modification method promises opportunities for the fabrication of high‐efficiency thermally conductive fillers and composites.

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Section: Characterization Of the Heterostructured Bnns-g-p4vp-aunps H...mentioning

confidence: 72%

Section: Characterization Of the Heterostructured Bnns-g-p4vp-aunps H...mentioning

confidence: 96%

Fabrication of Heterostructured BNNS‐g‐P4VP‐AuNPs Hybrid Fillers with Uniform and Dense Au Nanoparticles for Enhancing Thermal Conductivity of the Nanofibrillated Cellulose

Yin

Zhang

et al. 2022

Macro Materials & Eng

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“…Therefore, the photoinitiation via HMPP here plays an important role for the polymer coatings, where traditional dispersion polymerization can be achieved only after proper surface functionalization. 43 As for the coating of hydrophilic polymers, the same issue of surface compatibility exists as it also requires surface initiation. 44 With the aid of photoinduced polymerization of HMPP, this complication can be avoided for the coating of any type of polyelectrolyte, which is important for functional plasmonics.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Such an anisotropic coating (Figure a,b) is mainly due to surface tensions and nonlinear swelling effects as reported previously. , For the photopolymerization without HMPP, no coating is observed (Supporting Information, Figure S2b), even though the monomers can be photopolymerized (Supporting Information, Figure S2a). Therefore, the photoinitiation via HMPP here plays an important role for the polymer coatings, where traditional dispersion polymerization can be achieved only after proper surface functionalization …”

Section: Resultsmentioning

confidence: 99%

A General Nanocoating Method via Photoinduced Self-Initiation

Deng

Lü

et al. 2021

Langmuir

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Hybrid core–shell nanoparticles play a very significant role in many applications. Here, we report a light-induced oligomer coating on nanoparticles via Norrish type I reaction. The radical species generated via UV irradiation can chemically initiate the photoinitiators, which are then polymerized and deposited on inorganic nanoparticles via heterogeneous nucleation, forming a soft oligomer coating smaller than 40 nm. This coating method is versatile and potentially applicable to many different types of inorganic cores and their assemblies, making it a very useful technique for “freezing” nanoassemblies in solution. Moreover, these oligomer coatings containing radical species can also initiate surface polymerization of both styrenic and acrylic monomers with certain functionalities for different applications such as self-assembly, plasmon tuning, and pH sensing (3.5–4.5).

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“…Literatürdeki mevcut çalışmalarla, kalsiyum fosfat [19], silika [20], karbon [21], gümüş [22], jelatin-metakrilol [23] gibi farklı nanomalzemelerin biyogörüntüleme amaçlı kullanım potansiyeli ortaya konmuştur. Ayrıca, bor nitrür nanopulları [24], bor nitrür nano yaprakları [25] ve bor nitrür nanotüpleri [7]…”

Section: Introductionunclassified

Rodamin 123 Etiketli Bor Nitrür Nanoparçacıklarının Karakterizasyonu ve in vitro Biyogörüntüleme Potansiyelinin Araştırılması

Eroğlu¹

2021

Deu Muhendislik Fakultesi Fen Ve Muhendislik

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ÖzBu çalışmanın amacı bor nitrür (BN) nanoparçacıklarının floresan bir boya olan rodamin 123 (Rd) ile etiketlenmesi ve biyogörüntüleme amaçlı kullanımının in vitro ortamda araştırılmasıdır. Öncelikli olarak, rodamin 123 etiketi bor nitrür nanoparçacıklarına glutaraldehid çapraz bağlayıcısı aracılığıyla bağlanarak BN-Rd nanoparçacıkları üretilmiş ve SEM, UV-görünür bölge spektroskopisi, MTT hücre proliferasyon testi, ışık mikroskobu ve floresan mikroskobu analizleri ile karakterize edilmiştir. Sitotoksik olmayan konsantrasyonlardaki BN-Rd nanoparçacıkları insan prostat kanseri hücreleri (PC-3) ile insan embriyonik böbrek hücreleri (HEK-293) üzerine uygulanmış ve hücreler floresan mikroskobu altında incelenerek BN-Rd'nin biyogörüntüleme potansiyeli in vitro ortamda araştırılmıştır. Sonuç olarak, SEM analizlerinde ~40 nm boyuta sahip olduğu belirlenen BN ve BN-Rd 30 µg/ml ve üzerindeki konsantrasyonlarda sitotoksik etki göstermiştir. Işık mikroskobu altında incelenen nanoparçacık uygulanmış hücre morfolojileri MTT sonuçlarını destekler nitelikte bulunmuştur. Her iki hücre hattı üzerine de uygulanan BN-Rd'nin 10 µg/ml konsantrasyonda hücreler ile etkileşime geçtiği ve hücrelerin in vitro ortamda floresan mikroskobu altında ışıma yaptığı gözlenmiştir. Bu çalışmadan elde edilen bulgular ışığında rodamin 123 floresan boyası ile etiketli bor nitrür nanoparçacıklarının biyogörüntüleme uygulamalarında kullanım potansiyeli ortaya konmuştur.

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In situ synthesis of polymer-modified boron nitride nanosheets via anionic polymerization

Cited by 27 publications

References 49 publications

Fabrication of Heterostructured BNNS‐g‐P4VP‐AuNPs Hybrid Fillers with Uniform and Dense Au Nanoparticles for Enhancing Thermal Conductivity of the Nanofibrillated Cellulose

Fabrication of Heterostructured BNNS‐g‐P4VP‐AuNPs Hybrid Fillers with Uniform and Dense Au Nanoparticles for Enhancing Thermal Conductivity of the Nanofibrillated Cellulose

A General Nanocoating Method via Photoinduced Self-Initiation

Rodamin 123 Etiketli Bor Nitrür Nanoparçacıklarının Karakterizasyonu ve in vitro Biyogörüntüleme Potansiyelinin Araştırılması

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