Abstract
Double hydrophilic diblock copolymers (DHBCs) with a zwitterionic block of poly[2-(methacryloyloxyethyl phosphorylcholine)] (PMPC) having degree of polymerization (DP) (n = 25) and other as thermo/pH-responsive poly[2-(dimethylaminoethyl methacrylate)] (PDMAEMA) block with DP (n = 24 and 48) abbreviated as PMPC25-b-PDMAEMAn were synthesized using reversible addition-fragmentation chain transfer (RAFT). The influence of the DP of the PDMAEMA block in both the DHBCs in different environments like pH, temperature, and salt concentration was studied exhaustively using proton nuclear magnetic resonance spectroscopy (1H-NMR) and gel-permeation chromatography (GPC). Additionally, the molecular interaction between the blocks was predicted from the optimized descriptors using a computational simulation framework. The self-assembly leading to successive micellization is examined from scattering techniques in the applied stimuli environment. The micellization was favored in alkaline pH and in the presence of salt, particularly for the DHBC with a high DP.
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References
Varvara C, Stergios P (2018) Stimuli-responsive amphiphilic PDMAEMA-b-PLMA copolymers and their cationic and zwitterionic analogs. Polym Sci A Polym Chem 56(6):598–610. https://doi.org/10.1002/pola.28931
Cyrille B, Nathaniel Alan C, Kenward J, Diep N, Thuy-Khanh N, Nik NM, A, Susan O, Sivaprakash S, Jonathan Y (2016) Copper-mediated living radical polymerization (atom transfer radical polymerization and copper (0) mediated polymerization): from fundamentals to bioapplications. Chem Rev 116(4):1803–1949. https://doi.org/10.1021/acs.chemrev.5b00396
Aguilar R, Elvira C, Gallardo A, Vazquez B, Román J (2007)Smart polymers and their applications as biomaterials, Biomaterials. SPAIN 3(6) 1–27 chapter-6. https://www.researchgate.net/publication/228365910
Eun Seok G, Samuel MH (2004) Stimuli-reponsive polymers and their bioconjugates Prog Polym Sci 29(12)1173–1222
Vitaliy VK, Theoni KG (2018) Temperature-responsive polymers: chemistry, properties, and applications, John Wiley & Sons, U.K. https://doi.org/10.1002/9781119157830
Stephanie G, Mohamed E, El-Sayed H (2010) Stimuli-sensitive particles for drug delivery. Nat Rev Drug Discov 171–190 chapter-7. https://doi.org/10.1142/97898142956800008
Jiao B, Mingzu Z, **lin H, Peihong N (2013) Preparation and self-assembly of double hydrophilic poly (ethylethylene phosphate)-block-poly [2-(succinyloxy) ethyl methacrylate] diblock copolymers for drug delivery. React Funct Polym 73(3):579–587. https://doi.org/10.1016/j.reactfunctpolym.2012.12.010
Ren J (2011) Biodegradable poly (lactic acid): synthesis, modification, processing and applications Springer Science and Business Media New York 978-3-642-17595-4
Khimani M, Yusa S, Nagae A, Enomoto R, Aswal V, Kesselman E, DaninoD BP (2015) Self-assembly of multi-responsive poly (N-isopropylacrylamide)-b-poly (N, N-dimethylaminopropylacrylamide) in aqueous media. Springer Science and Business Media 69:96–109. https://doi.org/10.1016/j.eurpolymj.2015.05.027
Agut W, Brûlet A, Schatz C, Taton D, Lecommandoux S (2010) pH and temperature responsive polymeric micelles and polymersomes by self-assembly of poly [2-(dimethylamino) ethyl methacrylate]-b-poly (glutamic acid) double hydrophilic block copolymers. Langmuir 26(13):10546–10554. https://doi.org/10.1021/la1005693
Kumar S, Parikh K (2012) Influence of temperature and salt on association and thermodynamic parameters of micellization of a cationic gemini surfactant. J Appl Sol 1(1):65–73. E-ISSN:1929–5030/12
Kumar S, Sharma D, Kabir-ud-Din (2003) Temperature-[salt] compensation for clouding in ionic micellar systems containing sodium dodecyl sulfate and symmetrical quaternary bromides. Langmuir 19(8):3539–3541. https://doi.org/10.1021/la026783e
Zhang Z, Moxey M, Alswieleh A, Morse J, Lewis L, Geoghegan M, Leggett J (2016) Effect of salt on phosphorylcholine-based zwitterionic polymer brushes. Langmuir 32(20):5048–5057. https://doi.org/10.1021/acs.langmuir.6b00763
Saha P, Palanisamy R, Santi M, Ganguly R, Mondal S, Singha K, Pich A (2021) Thermoresponsive zwitterionic poly (phosphobetaine) microgels: effect of macro-RAFT chain length and cross-linker molecular weight on their antifouling properties. Polym Adv Technol 32(7):2710–2726. https://doi.org/10.1002/pat.5214
Goda T, Ishihara K, Miyahara Y (2015) Critical update on 2‐methacryloyloxyethyl phosphorylcholine (MPC) polymer science. J Appl Polym Sci 132(16). https://doi.org/10.1002/app.41766
Hong L, Zhang Z, Zhang Y, Zhang W (2014) Synthesis and self-assembly of stimuli-responsive amphiphilic block copolymers based on polyhedral oligomeric silsesquioxane. J Polym Sci A Polym Chem 52(18):2669–2683. https://doi.org/10.1002/pola.27287
Lewis A, Tang Y, Brocchini S, Choi W, Godwin A (2008) Poly (2-methacryloyloxyethyl phosphorylcholine) for protein conjugation. Bioconjugate Chem 19(11):2144–2155. https://doi.org/10.1021/bc800242t
Kuroda K, Miyoshi H, Fujii S, Hirai T, Takahara A, Nakao A, Iwasaki Y, Morigaki K, Ishihara K, Yusa SI (2015) Poly (dimethylsiloxane)(PDMS) surface patterning by biocompatible photo-crosslinking block copolymers. RSC Adv 5(58):46686–46693. https://doi.org/10.1039/C5RA08843G
Bütün V, Armes P, Billingham C (2001) Synthesis and aqueous solution properties of near-monodisperse tertiary amine methacrylate homopolymers and diblock copolymers. Polym J 42(14):5993–6008. https://doi.org/10.1016/S0032-3861(01)00066-0
Atanase LI, Desbrieres J, Riess G (2017) Micellization of synthetic and polysaccharides-based graft copolymers in aqueous media. Prog Polym Sci 73:32–60. https://doi.org/10.3390/polym3031065
Ma Y, Lobb J, Billingham C, Armes P, Lewis L, Lloyd W, Salvage J (2002) Synthesis of biocompatible polymers. 1. Homopolymerization of 2-methacryloyloxyethyl phosphorylcholine via ATRP in protic solvents: an optimization study. Macromolecules. 35(25):9306–9314. https://doi.org/10.1021/ma0210325
Plamper FA, Synatschke CV, Majewski AP, Schmalz A, Schmalz H, Müller AH (2014) Star-shaped poly [2-(dimethylamino) ethyl methacrylate] and its derivatives: toward new properties and applications. Polimery 59(1):66–73. https://doi.org/10.14314/polimery.2014.066
Niskanen J, Wu C, Ostrowski M, Fuller G, Hietala S, Tenhu H (2013) Thermoresponsiveness of PDMAEMA. Electrostatic and stereochemical effects, Macromolecules 46(6):2331–2340. https://doi.org/10.1021/ma302648w
Mitsukami Y, Donovan S, Lowe B, McCormick L (2001) Water-soluble polymers. 81. Direct synthesis of hydrophilic styrenic-based homopolymers and block copolymers in aqueous solution via RAFT. Macromolecules 34(7):2248–2256. https://doi.org/10.1021/ma0018087
Stubbs E, Laskowski E, Conor P, Heinze A, Karis D, Glogowski M (2017) Control of pH-and temperature-responsive behavior of mPEG-b-PDMAEMA copolymers through polymer composition. J Macromol Sci A 54(4):228–235. https://doi.org/10.1080/10601325.2017.1282694
Han X, Zhang X, Zhu H, Yin Q, Liu H, Hu Y (2013) Effect of composition of PDMAEMA-b-PAA block copolymers on their pH-and temperature-responsive behaviors. Langmuir 29(4):1024–1034. https://doi.org/10.1021/la3036874
Mohammadi M, Salami-Kalajahi M, Roghani-Mamaqani H, Golshan M (2017) Effect of molecular weight and polymer concentration on the triple temperature/pH/ionic strength-sensitive behavior of poly (2-(dimethylamino) ethyl methacrylate). Int J Polym Mater 66(9):455–461. https://doi.org/10.1080/00914037.2016.1236340
Plamper FA, Ruppel M, Schmalz A, Borisov O, Ballauff M, Müller AH (2007) Tuning the thermoresponsive properties of weak polyelectrolytes: aqueous solutions of star-shaped and linear poly (N, N-dimethylaminoethyl methacrylate). Macromolecules 40(23):8361–8366. https://doi.org/10.1021/ma071203b
Gohy F, Antoun S, Jérôme R (2001) pH-dependent micellization of poly (2-vinylpyridine)-block-poly((dimethylamino) ethyl methacrylate) diblock copolymers. Macromolecules 34(21):7435–7440. https://doi.org/10.1021/ma010535s
Manouras T, Koufakis E, Anastasiadis H, Vamvakaki M (2017) A facile route towards PDMAEMA homopolymer amphiphiles. Soft Matter 13(20):3777–3782. https://doi.org/10.1039/C7SM00365J
Zhu J, Tan B, Du X (2008) Preparation and self-assembly behavior of polystyrene-block-poly (dimethylaminoethyl methacrylate) amphiphilic block copolymer using atom transfer radical polymerization. Express Polym Lett 2(3):214–225. https://doi.org/10.3144/expresspolymlett.2008.26
de Paz BV, Robinson L, Armes P (2000) Synthesis and solution properties of dimethylsiloxane-2-(dimethylamino) ethyl methacrylate block copolymers. Macromolecules 33(2):451–456. https://doi.org/10.1021/ma991665s
Ni H, Pan S, Zha S, Wang C, Elaïssari A, Fu K (2002) Syntheses and characterizations of poly [2-(dimethylamino) ethyl methacrylate]-poly (propylene oxide)-poly [2-(dimethylamino) ethyl methacrylate] ABA triblock copolymers. J Polym Sci A Polym Chem 40(4):624–631. https://doi.org/10.1002/pola.10144
Cabral H, Miyata K, Osada K, Kataoka K (2018) Block copolymer micelles in nanomedicine applications. Chem Rev 118(14):6844–6892. https://doi.org/10.1021/acs.chemrev.8b00199
Bhadoria A, Kumar S, Aswal VK, Kumar S (2015) Mechanistic approach on heat induced growth of anionic surfactants: a clouding phenomenon. RSC Adv 5(30):23778–23786. https://doi.org/10.1039/C5RA01090J
Zhang C, Maric M (2011) Synthesis of stimuli-responsive, water-soluble poly[2-(dimethylamino)ethyl methacrylate/styrene] Statistical Copolymers by Nitroxide Mediated Polymerization. Polymers 1398–1422. https://doi.org/10.3390/polym3031398
Sharma D, Khan ZA, Aswal VK, Kumar S (2006) Clouding phenomenon and SANS studies on tetra-n-butylammonium dodecylsulfate micellar solutions in the absence and presence of salts. J Colloid Interface Sci 302(1):315–321. https://doi.org/10.1016/j.jcis.2006.06.021
NguyenL IK, Yusa SI (2022) Separated micelles formation of pH-responsive random and block copolymers containing phosphorylcholine groups. Polymers 14(3):577. https://doi.org/10.3390/polym14030577
Giacomelli C, Le Men L, Borsali R, Lai-Kee-Him J, Brisson A, Armes SP, Lewis L (2006) Phosphorylcholine-based pH-responsive diblock copolymer micelles as drug delivery vehicles: light scattering, electron microscopy, and fluorescence experiments. Biomacromol 7(3):817–828. https://doi.org/10.1021/bm0508921
Aswal K, Goyal S (2000) Small-angle neutron scattering diffractometer at Dhruva reactor. Curr Sci 79(7):947–953. https://www.jstor.org/stable/24104808
Jangir A, Patel D, More R, Parmar A, Kuperkar K (2019) New insight into experimental and computational studies of Choline chloride-based ‘green’ternary deep eutectic solvent (TDES). Colloids Surf A Physicochem Eng Asp 1181:295–299. https://doi.org/10.1016/j.molstruc.2018.12.106
Fukumoto H, Ishihara K, Yusa SI (2021) Thermo-responsive behavior of mixed aqueous solution of hydrophilic polymer with pendant phosphorylcholine group and poly (acrylic acid). Polymers 13(1):148. https://doi.org/10.3390/polym13010148
Ukawa M, Akita H, Masuda T, Hayashi Y, Konno T, Ishihara K, Harashima H (2010) 2-Methacryloyloxyethyl phosphorylcholine polymer (MPC)-coating improves the transfection activity of GALA-modified lipid nanoparticles by assisting the cellular uptake and intracellular dissociation of plasmid DNA in primary hepatocytes. Biomaterials 31(24):6355–6362. https://doi.org/10.1016/j.biomaterials.2010.04.031
de Castro E, Ribeiro A, Alavarse C, Albuquerque J, da Silva C, Jäger E, Surman F, Schmidt V, Giacomelli C, Giacomelli C (2018) Nanoparticle–cell interactions: surface chemistry effects on the cellular uptake of biocompatible block copolymer assemblies. Langmuir 34(5):2180–2188. https://doi.org/10.1021/acs.langmuir.7b04040
Atanase LI, Riess G (2011) Thermal cloud point fractionation of poly (vinyl alcohol-co-vinyl acetate): partition of nanogels in the fractions. Polymers 3(3):1065–1075. https://doi.org/10.3390/polym3031065
Acknowledgements
The authors acknowledge the scientists Dr. Vinod K. Aswal and Dr. Debes Ray, Solid State Physics Division, Bhabha Atomic Research Centre (BARC), Mumbai, Maharashtra-India for providing the neutron scattering facility and also to the Department of Chemistry, Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat, Gujarat-INDIA for providing the central instrumentation facility.
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Highlights
• PMPC25-b-PDMAEMAn are dual (thermo-and pH-) responsive double hydrophilic block copolymers (DHBCs).
• PMPC25-b-PDMAEMAn (n = 24 and 48) diblock copolymers were synthesized via RAFT and the correct synthesis was confirmed from spectral study.
• Self-assembly and micellar growth of these DHBCs are examined using scattering methods as a function of the applied stimuli (temperature and pH).
• Molecular interactions in DHBCs are discussed using the evaluated optimized computational descriptors.
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Yukioka, S., Yusa, Si., Prajapati, V. et al. Self-assembly in newly synthesized dual-responsive double hydrophilic block copolymers (DHBCs) in aqueous solution. Colloid Polym Sci 301, 417–431 (2023). https://doi.org/10.1007/s00396-023-05075-4
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DOI: https://doi.org/10.1007/s00396-023-05075-4