Thermodynamics of α-angelicalactone polymerization

Kaygorodov, Konstantin L.; Tarabanko, Valery E.; Tarabanko, Nikolay

doi:10.1080/23312009.2018.1443689

Cited by 9 publications

(8 citation statements)

References 18 publications

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“…14.0 kg.mol -1 and Ð = 1.65-2.17) with low monomer conversion (≤ 25%) after 4 h. Block copolymers containing γBL were also synthesized. For example, with potassium methoxide (KOMe) or sodium hydride (NaH) in DCM/THF at -50 °C ([γBL]0 = 6 M), PEG-OH was used as a macroinitiator to yield amphiphilic block copolymers PEG-b-PγBL with ̅̅̅̅ = 5.8-12.8 kg.mol -1 [94].Sodium hydroxide (NaOH) or sodium n-butoxide (n-BuONa) were used for the ROP of αAL, and only oligomers were produced at RT, despite a Tc estimated at 152 °C[98][99][100].…”

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Ring-opening polymerization of γ-lactones and copolymerization with other cyclic monomers

Song

Pascouau

Zhao

et al. 2020

Progress in Polymer Science

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Triggered by raised environmental awareness and the rising requirements for sustainable polymers such as degradable or recyclable polymers, studies on ring-opening (co)polymerization (ROP/ROCP) of (bio-based) cyclic monomers (e.g., cyclic esters, lactides, epoxides etc.) have been booming in recent years. Renewable five-membered γ-butyrolactone (γBL) and derivatives would thus be a desirable feedstock to produce poly(γ-butyrolactone) (PγBL) and different (bio-based) functional polyesters. Their copolymerization with other cyclic monomers could also afford an alternative to tune the properties of the resulting materials.Although γBL was traditionally regarded "non-polymerizable", some progresses were made recently concerning the ROP/ROCP of γBL and derivatives. More importantly, some polyesters could be totally depolymerized back to their monomers by thermal or chemical treatment. This review is specially focused on ROP of γ-lactones and their copolymerization with other cyclic monomers by different catalytic/initiating systems, including Lewis/Brønsted acids, organic bases and alkali metal compounds, organometallic compounds, and cooperative bicomponent catalytic systems. The depolymerization process of some obtained polyesters is also discussed.

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confidence: 99%

Ring-opening polymerization of γ-lactones and copolymerization with other cyclic monomers

Song

Pascouau

Zhao

et al. 2020

Progress in Polymer Science

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“…Полимеризация (рис. 1) протекает в присутствии гидроксида и бутилата натрия [1,3], октаноата олова [2].…”

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“…ПАЛ с молекулярной массой до 20000 легко подвергается биодеградации в почве до статистически нетоксичных продуктов [1,3]. Поэтому олигомеры ПАЛ можно рассматривать в качестве основы для создания биодеградируемых блок-сополимеров промышленных полимеров.…”

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“…Полимеризация (рис. 1) протекает в присутствии гидроксида и бутилата натрия [1,3] Полученные сополимеры могут проходить стадию отверждения прессованием совместно с волокнистыми полимерами, например целлюлозой, и это открывает возможности создания новых биодеградируемых композиционных материалов. № 0356-2016-0505 (V.46.4.2 Список литературы…”

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Emulsion Copolymerization of Polyangelicalactone with Styrene

Kaygorodov

Tarabanko

Смирнова

et al. 2019

Journal of Siberian Federal University. Chemistry

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For the first time emulsion polymerization of polyangelicalactone with styrene was carried out. Block copolymers with a molecular weight of 40000-1000000 and containing 5-40 wt. % of styrene were prepared. Polymerization rate constants were evaluated. Mechanical properties were evaluated after the copolymers were cured. The cured block copolymers satisfy the basic requirements for high impact polystyrene, and they are biodegradable.

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“…Получаемый из возобновляемого сырья α-ангеликалактон (5-метил-2(3Н)-фуранон, αАЛ) способен путем анионной полимеризации образовывать биоразлагаемый непредельный полиэфир -полиангеликалактон (ПАЛ) [3][4][5][6][7][8] (рис. 1).…”

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Synthesis and Properties of Biodegradable Copolymers Based on ε-Caprolactam and α-Angelicalactone

Кайгородов

Kaygorodov

Tarabanko

et al. 2019

Journal of Siberian Federal University. Chemistry

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Copolymers and block-copolymers of ε-caprolactam, α-angelicalactone and polyangelicalactone were first synthesized by the anionic polymerization method. Yields of polymers and rates of their formation decrease with increasing the α-angelicalactone and polyangelicalactone concentration. Physical and mechanical properties of the obtained copolymers are very close to the properties of polycaprolactam. The synthesized block-copolymers are biodegradable in the grey forest soil, and they are completely visually destroyed during 20 weeks. The water extracts of the biodegradation products are nontoxic

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Thermodynamics of α-angelicalactone polymerization

Cited by 9 publications

References 18 publications

Ring-opening polymerization of γ-lactones and copolymerization with other cyclic monomers

Ring-opening polymerization of γ-lactones and copolymerization with other cyclic monomers

Emulsion Copolymerization of Polyangelicalactone with Styrene

Synthesis and Properties of Biodegradable Copolymers Based on ε-Caprolactam and α-Angelicalactone

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