Preparation of Polymeric Nanomaterials Using Emulsion Polymerization

Nanoparticles are said to be active particles which are entrapped in the surface of the polymeric core. Since nanoparticles were used in medical and biotechnological fields, there is a great demand in the preparation of nanoparticles. Nanoparticles are prepared from different substances; mainly, polymer material is used in the field of preparing nanomaterials. There are different methods involved in the preparation of nanoparticles from the polymer. Various experiments and research studies were carried out on the basic preparation of nanoparticles. Emulsion polymerization could be used to make polymeric nanoparticles with a high solid concentration without the need of surfactants. To make carboxylate polystyrene beads or amidine polystyrene nanoparticles, polymeric nanocolloids containing surface functional groups were produced. In this research, the preparation of nanoparticles from emulsion polymerization is represented along with the size and distribution material.

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Synthesis of Poly(methacrylic acid)-block-Polystyrene Diblock Copolymers at High Solid Contents via RAFT Emulsion Polymerization

Polymers ◽

10.3390/polym13213675 ◽

2021 ◽

Vol 13 (21) ◽

pp. 3675

Author(s):

Iklima Oral ◽

Larissa Grossmann ◽

Elena Fedorenko ◽

Jana Struck ◽

Volker Abetz

Keyword(s):

Emulsion Polymerization ◽

Methacrylic Acid ◽

Self Assembly ◽

Diblock Copolymers ◽

Polymeric Nanoparticles ◽

Pure Water ◽

Solid Content ◽

Controlled Polymerization ◽

High Solid ◽

Raft Agent

The combination of polymerization–induced self-assembly (PISA) and reversible–addition fragmentation chain transfer (RAFT) emulsion polymerization offers a powerful technique to synthesize diblock copolymers and polymeric nanoparticles in a controlled manner. The RAFT emulsion diblock copolymerization of styrene and methacrylic acid (MAA) by using a trithiocarbonate as surfactant and RAFT agent was investigated. The Z-group of the RAFT agent was modified with a propyl-, butyl- and dodecyl- sidechain, increasing the hydrophobicity of the RAFT agent to offer well-controlled polymerization of poly(methacrylic acid)-block-polystyrene (PMAA-b-PS) diblock copolymers at high solid contents between 30–50 wt% in water. The kinetic data of the PMAA homopolymerization with the three different RAFT agents for various solvents was investigated as well as the RAFT emulsion polymerization of the diblock copolymers in pure water. While the polymerization of PMAA-b-PS with a propyl terminus as a Z-group suffered from slow polymerization rates at solid contents above 30 wt%, the polymerization with a dodecyl sidechain as a Z-group led to full conversion within 2 h, narrow molar mass distributions and all that at a remarkable solid content of up to 50 wt%.

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A novel eutectic solvent precursor for efficiently preparing N-doped hierarchically porous carbon nanosheets with unique surface functional groups and micro-pores towards dual-carbon lithium-ion capacitors

Journal of Materials Chemistry A ◽

10.1039/d1ta03071j ◽

2021 ◽

Author(s):

Kaixiang Zou ◽

Yuanfu Deng ◽

Weijing Wu ◽

Shiwei Zhang ◽

Guohua Chen

Keyword(s):

Functional Groups ◽

Porous Carbon ◽

High Performance ◽

Electrode Materials ◽

Lithium Ion ◽

Surface Functional Groups ◽

Carbon Nanosheets ◽

Hierarchically Porous ◽

Li Ion ◽

Unique Surface

High performance carbon-based materials are ideal electrode materials for Li-ion capacitors (LICs), but there are still many challenges such as the complicated preparation preocesses, high cost and low yield. Also,...

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H2O2 modified-hydrochar derived from paper waste sludge for enriched surface functional groups and promoted adsorption to ammonium

Journal of the Taiwan Institute of Chemical Engineers ◽

10.1016/j.jtice.2021.06.057 ◽

2021 ◽

Author(s):

Lan Huong Nguyen ◽

Xuan Hoan Nguyen ◽

Ngoc Dang Khoa Nguyen ◽

Huu Tap Van ◽

Van Nam Thai ◽

...

Keyword(s):

Functional Groups ◽

Surface Functional Groups ◽

Waste Sludge ◽

Paper Waste

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Surface functional groups on acid-activated nutshell carbons

Carbon ◽

10.1016/s0008-6223(98)00315-7 ◽

1999 ◽

Vol 37 (8) ◽

pp. 1207-1214 ◽

Cited By ~ 167

Author(s):

Christopher A. Toles ◽

Wayne E. Marshall ◽

Mitchell M. Johns

Keyword(s):

Functional Groups ◽

Surface Functional Groups

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β phase PVDF-hfp induced by mesoporous SiO2 nanorods: synthesis and formation mechanism

Journal of Materials Chemistry C ◽

10.1039/c5tc00005j ◽

2015 ◽

Vol 3 (15) ◽

pp. 3708-3713 ◽

Cited By ~ 41

Author(s):

Du Yuan ◽

Zibiao Li ◽

Warintorn Thitsartarn ◽

Xiaoshan Fan ◽

Jiaotong Sun ◽

...

Keyword(s):

Intermolecular Interaction ◽

Functional Groups ◽

Formation Mechanism ◽

Surface Functional Groups ◽

Β Phase ◽

Synthesis Strategy ◽

Effective Synthesis ◽

Mesoporous Sio2

A simple and effective synthesis strategy is developed for electroactive β-PVDF-hfp where both intermolecular interaction and arrangement of surface functional groups operate.

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