@article{MTMT:33687683,
	title = {Highly Efficient Cationic Polymerization of β-Pinene, a Bio-Based, Renewable Olefin, with TiCl4 Catalyst from Cryogenic to Energy-Saving Room Temperature Conditions},
	url = {https://m2.mtmt.hu/api/publication/33687683},
	author = {Verebélyi, Klára and Szabó, Ákos and Réti, Zsombor and Szarka, Györgyi Éva and Villányi, Ákos and Iván, Béla},
	doi = {10.3390/ijms24065170},
	journal-iso = {INT J MOL SCI},
	journal = {INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES},
	volume = {24},
	unique-id = {33687683},
	issn = {1661-6596},
	abstract = {Polymers based on renewable monomers are projected to have a significant role in the sustainable economy, even in the near future. Undoubtedly, the cationically polymerizable β-pinene, available in considerable quantities, is one of the most promising bio-based monomers for such purposes. In the course of our systematic investigations related to the catalytic activity of TiCl4 on the cationic polymerization of this natural olefin, it was found that the 2-chloro-2,4,4-trimethylpentane (TMPCl)/TiCl4/N,N,N′,N′-tetramethylethylenediamine (TMEDA) initiating system induced efficient polymerization in dichloromethane (DCM)/hexane (Hx) mixture at both −78 °C and room temperature. At −78 °C, 100% monomer conversion was observed within 40 min, resulting in poly(β-pinene) with relatively high Mn (5500 g/mol). The molecular weight distributions (MWD) were uniformly shifted towards higher molecular weights (MW) in these polymerizations as long as monomer was present in the reaction mixture. However, chain–chain coupling took place after reaching 100% conversion, i.e., under monomer-starved conditions, resulting in considerable molecular weight increase and MWD broadening at −78 °C. At room temperature, the polymerization rate was lower, but chain coupling did not occur. The addition of a second feed of monomer in the polymerization system led to increasing conversion and polymers with higher MWs at both temperatures. 1H NMR spectra of the formed polymers indicated high in-chain double-bond contents. To overcome the polarity decrease by raising the temperature, polymerizations were also carried out in pure DCM at room temperature and at −20 °C. In both cases, rapid polymerization occurred with nearly quantitative yields, leading to poly(β-pinene)s with Mns in the range of 2000 g/mol. Strikingly, polymerization by TiCl4 alone, i.e., without any additive, also occurred with near complete conversion at room temperature within a few minutes, attributed to initiation by adventitious protic impurities. These results convincingly prove that highly efficient carbocationic polymerization of the renewable β-pinene can be accomplished with TiCl4 as catalyst under both cryogenic conditions, applied widely for carbocationic polymerizations, and the environmentally benign, energy-saving room temperature, i.e., without any additive and cooling or heating. These findings enable TiCl4-catalyzed eco-friendly manufacturing of poly(β-pinene)s, which can be utilized in various applications, and in addition, subsequent derivatizations could result in a range of high-added-value products.},
	year = {2023},
	eissn = {1422-0067},
	orcid-numbers = {Iván, Béla/0000-0003-2475-6841}
}

@article{MTMT:33674915,
	title = {Investigation of poly(3,6-dioxa-1,8-octane-dithiol)-based organosulfur polymer as the positive electrode material in rechargeable Li-S battery},
	url = {https://m2.mtmt.hu/api/publication/33674915},
	author = {Ovc-Okene , Derek  and Angamuthu, Gnanavel and Szabó, Ákos and Szarka, Györgyi Éva and Iván, Béla and Kun, Róbert},
	doi = {10.1016/j.jelechem.2022.117113},
	journal-iso = {J ELECTROANAL CHEM},
	journal = {JOURNAL OF ELECTROANALYTICAL CHEMISTRY},
	volume = {929},
	unique-id = {33674915},
	issn = {1572-6657},
	year = {2023},
	eissn = {1873-2569},
	orcid-numbers = {Iván, Béla/0000-0003-2475-6841}
}

@book{MTMT:33575674,
	title = {Indicator Material Comprising a Polymeric gel carrier and polymeric indicator},
	url = {https://m2.mtmt.hu/api/publication/33575674},
	author = {Iván, Béla and Kasza, György and Lontay, Dávid Zoltán and Balázs, Menyhért and Katalin, Neuróhr and Sármezey, Bence András and Szabó, Ákos and Szarka, Györgyi Éva and Dénes, Száz and Péter, Bánhegyi and Péter, Kerényi and László, Puskás},
	unique-id = {33575674},
	year = {2022},
	orcid-numbers = {Kasza, György/0000-0003-3335-8730; Sármezey, Bence András/0009-0007-5232-2182}
}

@article{MTMT:33339949,
	title = {Poly(dithiophosphate)s, A New Class of Phosphorus- and Sulfur-Containing Functional Polymers by a Catalyst-Free Facile Reaction between Diols and Phosphorus Pentasulfide},
	url = {https://m2.mtmt.hu/api/publication/33339949},
	author = {Szabó, Ákos and Szarka, Györgyi Éva and Trif, László and Gyarmati, Benjámin Sándor and Nagyné Bereczki, Laura and Iván, Béla and Kovács, Ervin},
	doi = {10.3390/ijms232415963},
	journal-iso = {INT J MOL SCI},
	journal = {INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES},
	volume = {23},
	unique-id = {33339949},
	issn = {1661-6596},
	abstract = {Novel poly(dithiophosphate)s (PDTPs) were successfully synthesized under mild conditions without any additive in the presence of THF or toluene diluents at 60 °C by a direct, catalyst-free reaction between the abundant phosphorus pentasulfide (P4S10) and glycols such as ethylene glycol (EG), 1,6-hexanediol (HD) and poly(ethylene glycol) (PEG). GPC, FTIR, 1H and 31P NMR analyses proved the formation of macromolecules with dithiophosphate coupling groups having P=S and P-SH pendant functionalities. Surprisingly, the ring-opening of THF by the P-SH group and its pendant incorporation as a branching point occur during polymerization. This process is absent with toluene, providing conditions to obtain linear chains. 31P NMR measurements indicate long-time partial hydrolysis and esterification, resulting in the formation of a thiophosphoric acid moiety and branching points. Copolymerization, i.e., using mixtures of EG or HD with PEG, results in polymers with broadly varying viscoelastic properties. TGA shows the lower thermal stability of PDTPs than that of PEG due to the relatively low thermal stability of the P-O-C moieties. The low Tgs of these polymers, from −4 to −50 °C, and a lack of PEG crystallites were found by DSC. This polymerization process and the resulting novel PDTPs enable various new routes for polymer synthesis and application possibilities.},
	year = {2022},
	eissn = {1422-0067},
	orcid-numbers = {Trif, László/0000-0002-3960-1829; Kovács, Ervin/0000-0002-3939-6925}
}

@article{MTMT:32920041,
	title = {Improvement of the drug encapsulation into biodegradable polyester nanocarriers by blending of poly(lactic-co-glycolic acid) and polycaprolactone},
	url = {https://m2.mtmt.hu/api/publication/32920041},
	author = {Ábrahám, Ágnes and Gyulai, Gergő and Tóth, Tünde and Szvoboda, Barna and Mihály, Judith and Szabó, Ákos and Kiss, Éva},
	doi = {10.3144/expresspolymlett.2022.70},
	journal-iso = {EXPRESS POLYM LETT},
	journal = {EXPRESS POLYMER LETTERS},
	volume = {16},
	unique-id = {32920041},
	issn = {1788-618X},
	year = {2022},
	eissn = {1788-618X},
	pages = {960-977},
	orcid-numbers = {Ábrahám, Ágnes/0000-0003-2586-8650; Gyulai, Gergő/0000-0002-1352-2014; Kiss, Éva/0000-0002-4757-4437}
}

@{MTMT:32493345,
	title = {Bicontinuous nanophasic amphiphilic polymer conetworks with broad composition range: A novel nanostructured material platform},
	url = {https://m2.mtmt.hu/api/publication/32493345},
	author = {Iván, Béla and Fodor, Csaba and Stumphauser, Tímea and Kasza, György and Haraszti, Márton and Kali, Gergely and Mezey, Péter and Pásztor, Szabolcs and Szabó, Ákos and Domján, Attila and Thomann, Ralf and Thomann, Yi and Mülhaupt, Rolf},
	booktitle = {Polymer meeting 14 - book of abstract},
	unique-id = {32493345},
	year = {2021},
	pages = {IL-9},
	orcid-numbers = {Kasza, György/0000-0003-3335-8730}
}

@{MTMT:31859513,
	title = {Endfunctional Polyisobutylenes By Quasiliving Carbocationic Polymerization and Bi- and Multicomponent Macromolecular Architectures Therefrom},
	url = {https://m2.mtmt.hu/api/publication/31859513},
	isbn = {9780128219980},
	author = {Iván, Béla and Szanka, István and Szabó, Ákos and Pásztor, Szabolcs and Pásztói, Balázs and Stumphauser, Tímea and Kasza, György and Szarka, Györgyi Éva and Kalocsai, Dániel and Bajcsi, Áron and Fecske, Dóra and Kovács, Ervin and Osváth, Zsófia and Petróczy, Anna and Verebélyi, Klára},
	booktitle = {Macromolecular Engineering: Design, Synthesis, and Application of Polymers},
	doi = {10.1016/B978-0-12-821998-0.00002-8},
	unique-id = {31859513},
	year = {2021},
	pages = {23-49},
	orcid-numbers = {Kasza, György/0000-0003-3335-8730; Kovács, Ervin/0000-0002-3939-6925}
}

@article{MTMT:31637510,
	title = {Quasiliving cationic ring-opening polymerization of 2-ethyl-2-oxazoline in benzotrifluoride, as an alternative reaction medium},
	url = {https://m2.mtmt.hu/api/publication/31637510},
	author = {Pásztói, Balázs and Trötschler, Tobias M. and Szabó, Ákos and Kerscher, Benjamin and Tenhu, Heikki and Mülhaupt, Rolf and Iván, Béla},
	doi = {10.1016/j.polymer.2020.123165},
	journal-iso = {POLYMER},
	journal = {POLYMER},
	volume = {212},
	unique-id = {31637510},
	issn = {0032-3861},
	year = {2021},
	eissn = {1873-2291}
}

@{MTMT:31795008,
	title = {INDICATOR MATERIAL COMPRISING A POLYMERIC GEL CARRIER AND POLYMERIC INDICATOR},
	url = {https://m2.mtmt.hu/api/publication/31795008},
	author = {Iván, Béla and Kasza, György and Lontay, Dávid Zoltán and Menyhért, Balázs and Neuróhr, Katalin and Sármezey, Bence András and Szabó, Ákos and Szarka, Györgyi Éva and Száz, Dénes and Bánhegyi, Péter and Kerényi, Pétert and Puskás, László},
	unique-id = {31795008},
	year = {2020},
	orcid-numbers = {Kasza, György/0000-0003-3335-8730; Sármezey, Bence András/0009-0007-5232-2182}
}

@article{MTMT:31643277,
	title = {Synthesis of Tosyl- and Nosyl-Ended Polyisobutylenes with High Extent of Functionalities: The Effect of Reaction Conditions},
	url = {https://m2.mtmt.hu/api/publication/31643277},
	author = {Pásztói, Balázs and Trötschler, Tobias M. and Szabó, Ákos and Szarka, Györgyi Éva and Kerscher, Benjamin and Mülhaupt, Rolf and Iván, Béla},
	doi = {10.3390/polym12112504},
	journal-iso = {POLYMERS-BASEL},
	journal = {POLYMERS},
	volume = {12},
	unique-id = {31643277},
	year = {2020},
	eissn = {2073-4360}
}