Comb like amphiphilic graft copolymers bearing PDMS and PEO side chains: synthesis and solvent assisted self-assembly behavior.
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| Title: | Comb like amphiphilic graft copolymers bearing PDMS and PEO side chains: synthesis and solvent assisted self-assembly behavior. |
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| Authors: | Sunitha, K.1 (AUTHOR) sunitha.baburaj@gmail.com, Mahesh, Sankarapillai1 (AUTHOR), Suchithra, C.2 (AUTHOR), Unnikrishnan, G.3 (AUTHOR), Reghunadhan Nair, C. P.4 (AUTHOR) |
| Source: | Journal of Polymer Research. Jul2022, Vol. 29 Issue 7, p1-12. 12p. |
| Subjects: | Graft copolymers, Methoxyethanol, Maleic anhydride, Benzyl chloride, Vinyl ethers, Light scattering |
| Abstract: | An amphiphilic comb like graft polymer, poly(VB-PDMS)-co-(MA-MPEG), with self-assembly features, was synthesized by free radical polymerization. A macromonomer based on a hydrophobic chain, vinyl benzyl PDMS (VB-PDMS), was initially realized by the reaction between PDMS monoglycidyl ether and vinyl benzyl chloride through a piperazine linker. Similarly, a hydrophilic macromonomer, maleic end functionalized polyethylene glycol monomethyl ether (MA-MPEG) was developed through the reaction between poly (ethylene glycol monomethyl ether) and maleic anhydride. The synthesized graft polymer was characterized by using 1H NMR and IR spectroscopy. Its self-association in solvents of varying solubility parameters viz; toluene, tetrahydrofuran, and ethanol was investigated by viscometry, dynamic light scattering (DLS), and UV spectral analysis. Dynamic light scattering studies of the polymer in ethanol shows a size shifting effect with dilution. It was further supported by the morphological examinations, through SEM and AFM, which shows the evolution of a spherical micelle from a worm like structure. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | An amphiphilic comb like graft polymer, poly(VB-PDMS)-co-(MA-MPEG), with self-assembly features, was synthesized by free radical polymerization. A macromonomer based on a hydrophobic chain, vinyl benzyl PDMS (VB-PDMS), was initially realized by the reaction between PDMS monoglycidyl ether and vinyl benzyl chloride through a piperazine linker. Similarly, a hydrophilic macromonomer, maleic end functionalized polyethylene glycol monomethyl ether (MA-MPEG) was developed through the reaction between poly (ethylene glycol monomethyl ether) and maleic anhydride. The synthesized graft polymer was characterized by using 1H NMR and IR spectroscopy. Its self-association in solvents of varying solubility parameters viz; toluene, tetrahydrofuran, and ethanol was investigated by viscometry, dynamic light scattering (DLS), and UV spectral analysis. Dynamic light scattering studies of the polymer in ethanol shows a size shifting effect with dilution. It was further supported by the morphological examinations, through SEM and AFM, which shows the evolution of a spherical micelle from a worm like structure. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 10229760 |
| DOI: | 10.1007/s10965-022-03128-w |
