<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The study and application of reversible addition-fragmentation chain transfer (RAFT) polymerization have been widely reported in the literature because of its high compatibility with numerous monomers, reaction conditions, and low polydispersity index. The effect of RAFT agents on the characteristics of the final product is greatly needed to be explored. Our present study aimed to compare the influence of two different types of RAFT agents on the characteristics of the water-soluble polymer (2-acrylamido-2-methylpropane sulfonic acid) (polyAMPS) and their polyAMPS@butyl methacrylate (BMA) core-shell particles. Different analytical techniques including scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), and thermogravimetric analysis (TGA) were used to ascertain the final morphological, structural, and thermal properties of the resultant products. It was found that RAFT agents have shown a clear influence on the final properties of the resultant polyAMPS and their core-shell particles such as particle size, shape, size distribution, and thermal behavior. This study confirms that RAFT agents can control the final properties of the polymers and their core-shell particles.</p>
</abstract>

The study and application of reversible addition-fragmentation chain transfer (RAFT) polymerization have been widely reported in the literature because of its high compatibility with numerous monomers, reaction conditions, and low polydispersity index. The effect of RAFT agents on the characteristics of the final product is greatly needed to be explored. Our present study aimed to compare the influence of two different types of RAFT agents on the characteristics of the water-soluble polymer (2-acrylamido-2-methylpropane sulfonic acid) (polyAMPS) and their polyAMPS@butyl methacrylate (BMA) core-shell particles. Different analytical techniques including scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), and thermogravimetric analysis (TGA) were used to ascertain the final morphological, structural, and thermal properties of the resultant products. It was found that RAFT agents have shown a clear influence on the final properties of the resultant polyAMPS and their core-shell particles such as particle size, shape, size distribution, and thermal behavior. This study confirms that RAFT agents can control the final properties of the polymers and their core-shell particles.

Characterization study of polyAMPS@BMA core-shell particles using two types of RAFT agents

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The study and application of reversible addition-fragmentation chain transfer (RAFT) polymerization have been widely reported in the literature because of its...

Core-shell particles	Temperature (°C) with weight reduction

	25%	50%	75%	92%
CSi	340	368	392	446
CSii	302	333	352	374

S. No.	Wave number (cm⁻¹)	Functional group	Belonging molecule	References
1.	1,633	C=O
2.	1,583	N–H (bending)
3.	1,364	C–N	polyAMPS	[25]
4.	1,190 and 1,039	O=S=O (asymmetric and symmetric stretching)
5.	603	C–S stretching
6.	3,333	Vibration of bonded and non-bonded OH groups	H₂O	Disperse medium
7.	2,957	Stretching CH
8.	1,726	C=O stretching	BMA	[27]
9.	1,240	C–O–C stretching

Characterization study of polyAMPS@BMA core-shell particles using two types of RAFT agents

Publié en ligne: 25 juil. 2021

Pages: 200 - 208

Reçu: 19 mai 2021

Accepté: 24 juin 2021

DOI: https://doi.org/10.2478/msp-2021-0015

Mots clés
RAFT agents, effect of RAFT agents, polyAMPS, core-shell particles, characterization

© 2021 Nasrullah Shah et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Comparative analysis of thermal degradation with respect to temperature.

Identifying characteristic peaks of CSi and CSii particles.

Characterization study of polyAMPS@BMA core-shell particles using two types of RAFT agents

Publié en ligne: 25 juil. 2021

Pages: 200 - 208

Reçu: 19 mai 2021

Accepté: 24 juin 2021

DOI: https://doi.org/10.2478/msp-2021-0015

Mots clésRAFT agents, effect of RAFT agents, polyAMPS, core-shell particles, characterization

© 2021 Nasrullah Shah et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Fig. 11

Comparative analysis of thermal degradation with respect to temperature.

Identifying characteristic peaks of CSi and CSii particles.

Mots clés
RAFT agents, effect of RAFT agents, polyAMPS, core-shell particles, characterization