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Indigenous block copolymerization by free radical mechanism using cis-1,1- diphenylethylene

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Abstract

The present article represents a one pot indigenous method of block copolymer synthesis free radically via sequential addition of monomers. Emphasizing the fact of sequential addition of monomers to form di-block and triblock copolymers of styrene(S) and n-butyl acrylate (B), have been attempted using, cis-1,1- diphenylethylene (DPE) as end capping agent. In order to produce living polymeric radical with the probability of further propagation of main chain, DPE played a significant role to reestablish the connectivity of the second block over the seemed to be dead polymeric block (first block). To establish a simple methodology to prepare block copolymers without further convolution, the reaction was first carried out in emulsion-based system followed by solution polymerization. The resulting block copolymers were characterized using basic tools such as FTIR, DSC and TGA followed by some advance techniques such as GPC, GCMS and AFM, respectively. At every stage of characterization, the behavior of resulting copolymer has been critically explained. In conclusion, the limitation of this methodology and application of the end product has also been scrutinized.

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Acknowledgement

The author appreciates the technical and experimental support provided by HASETRI for DSC, TGA and AFM experimentation and DIC India ltd for GPC experimentation. The author is immensely thankful to Dr. Abhijit Bandyopadhyay for his enormous support and guidance. The author would also like to thank the fellow group members, Dr. Srijoni Sengupta, Dr. Soumen Sardar, Mr. Subhodeep Chakraborty and Ms. Riya Koley for their help at various points of the experiment.

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Authors and Affiliations

  1. Department of Polymer Science & Technology, University of Calcutta 92, A.P.C. Road, Kolkata, 700009, India

    Roumita Hore, Srijoni Sengupta & Abhijit Bandyopadhyay

  2. Hari Shankar Singhania Elastomer & Tyre Research Institute, Raghupati Singhania Centre of Excellence, Analytical and Chemical Department, Hebbal industrial Area, Mysore, 570016, India

    Abhijit Pal & Jaganath Chandra

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  1. Roumita Hore
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Correspondence to Srijoni Sengupta.

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Hore, R., Sengupta, S., Pal, A. et al. Indigenous block copolymerization by free radical mechanism using cis-1,1- diphenylethylene. J Polym Res 30, 243 (2023). https://doi.org/10.1007/s10965-023-03602-z

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