A Novel Branched Polyoxymethylene Synthesized by Cationic Copolymerization of 1,3,5‐Trioxane with 3‐(Alkoxymethyl)‐3‐ethyloxetane

Mu, Youbing; Jia, Mingchen; Jiang, Wei; Wan, Xin

doi:10.1002/macp.201300473

Cited by 10 publications

(7 citation statements)

References 27 publications

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“…In addition, we tested the stability of the formed adhesive layer in water, using the adhesion samples prepared from dry conditions at 60 °C as the examples. After soaking into water at 40 °C for 24 h, similar binding strength was maintained, which indicated that the PVA‐ g ‐DHBA processed good water resistance compared to our previous report …”

Section: Resultssupporting

confidence: 68%

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Synthesis and Adhesive Property Study of a Mussel-Inspired Adhesive Based on Poly(vinyl alcohol) Backbone

et al. 2017

Macromol. Chem. Phys.

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In this study, an effective way is presented to synthesize a mussel‐inspired adhesive from two inexpensive commercially available materials: polyvinyl alcohol (PVA) and 3,4‐dihydroxybenzoic acid via the esterification reaction and deprotection technology. This bioinspired adhesive exhibits good bonding ability on metal, glass, plastic, and wood, and the maximum bonding strength can be up to 4.0 MPa at dry conditions on glass substrate. Meanwhile, this adhesive can also be used as a wet/underwater adhesive. Such a PVA‐based bioinspired adhesive may be used as a potential candidate for applications in industrial field.

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Section: Resultssupporting

confidence: 68%

“…After soaking into water at 40 °C for 24 h, similar binding strength was maintained, which indicated that the PVA-g-DHBA processed good water resistance compared to our previous report. [53,54]…”

Section: The Effect Of the Condition Of Adhesion On Bonding Strength mentioning

confidence: 99%

Synthesis and Adhesive Property Study of a Mussel-Inspired Adhesive Based on Poly(vinyl alcohol) Backbone

et al. 2017

Macromol. Chem. Phys.

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“…Poly (3-ethyl-3-( alkyl )oxymethyloxetane), PCmEO, having an alkyl side chain with various lengths ( m = 1, 2, 4, 6, 8, and 12) was used in this study ( Figure 1 ). PCmEO was synthesized based on previous studies ( Mu et al, 2013 ; Sai et al, 2017a ). The monomers of PCmEO and CmEO were synthesized from the coupling of 3-ethyl-3-hydroxymethyloxetane (EHO) and alkyl compounds modified with leaving groups in the base solution ( Scheme 1 ).…”

Section: Methodsmentioning

confidence: 99%

Effect of Alkyl Side Chain Length on the Lithium-Ion Conductivity for Polyether Electrolytes

et al. 2022

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The design guidelines of polymer structure to effectively promote lithium-ion conduction within the polymer electrolytes (PEs) are crucial for its practical use. In this study, the electrolyte properties of a simple polyether having alkyl side chains with varied lengths (−(CH2)m−H, m = 1, 2, 4, 6, 8, and 12) were compared and established a valid design strategy based on the properties of the alkyl side chain. Various spectro-electrochemical measurements successfully connected the electrolyte properties and the alkyl side chain length. Steric hindrance of the alkyl side chain effectively suppressed the interaction between ether oxygen and lithium-ion (m ≥ 2), decreasing the glass transition temperature and the activation energy of lithium-ion transfer at the electrode-electrolyte interface. The strong hydrophobic interactions aligned and/or aggregated the extended alkyl group (m ≥ 8), creating a rapid lithium-ion transport pathway and enhancing lithium-ion conductivity. A clear trend was observed for the following three crucial factors determining bulk lithium-ion transport properties along with the extension of the alkyl side chain: 1) salt dissociability decreased due to the non-polarity of the alkyl side chain, 2) segmental mobility of polymer chains increased due to the internal plasticizing effect, and 3) lithium-ion transference number increased due to the inhibition of the bulky anion transport by its steric hindrance. The highest lithium-ion conductivity was confirmed for the PEs with an alkyl side chain of moderate length (m = 4) at 70°C, indicating the optimized balance between salt dissociability, polymer segmental mobility, and selective lithium-ion transfer. The length of an alkyl side chain can thus be a critical factor in improving the performance of PEs, including thermal stability and lithium-ion conductivity. Precise tuning of the alkyl side chain-related parameters such as steric hindrance, polarity, internal plasticizing effect, and self-alignment optimizes the polymer segmental mobility and salt dissociability, which is crucial for realizing high lithium-ion conductivity for PEs.

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“…H-nuclear magnetic resonance spectrometry for the samples was conducted by dissolving about 10 mg of the sample in 0.38 mL of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) and then by adding 0.12 mL of deuterated chloroform to the solution, [15] using a BRUKER 500 MHz.…”

Section: Instrumentationmentioning

confidence: 99%

“…Figures 7 and 8 show the TGA curves in nitrogen atmosphere for S 5 , S 10 , S 15 , and S 5-R samples and a homopolymer sample (S Homo ) synthesized with the same catalyst. For copolymer samples, a two-step degradation was observed where the first which ended at 230 °C, which could be related to chains with a higher proportion of trioxane [15] (oxymethylene units) and a lower proportion of comonomer (oxyethylene units). To prove the claim, TGA test for the homopolymer synthesized sample with the same catalyst has been shown in Figure 7.…”

Section: (1)mentioning

confidence: 99%

Bulk copolymerization of 1,3,5-trioxane and 1,3-dioxolane in presence of phosphotungstic acid catalyst and tetrahydrofuran as retarder: crystallinity and thermal properties

Hajihashemi

Ahmadi

Arabi

2016

Designed Monomers and Polymers

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In this study, cationic ring opening in situ copolymerization of 1,3,5-trioxane (TOX) and 1,3-dioxolane (DOX) occurred during bulk polymerization in the presence of phosphotungstic acid as a catalyst. In another part of the study, copolymerization occurred in the presence of retarder tetrahydrofuran (THF), and its effect on the crystallization and thermal stability of the samples was also investigated. The findings from 1 HNMR spectrometry indicated that the synthesized samples of random acetal copolymer are comprised of an independent oxyethylene unit in an oxymethylene main-chain sequence. The findings from DSC indicated that crystallinity decreases with increasing comonomer content. Furthermore, the sample with retarder revealed greater crystallinity than the samples without retarder. From TGA results, it was revealed that the sample with retarder caused a larger quantity of comonomer to enter the chain and increased the thermal stability compared to the samples without retarder.

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A Novel Branched Polyoxymethylene Synthesized by Cationic Copolymerization of 1,3,5‐Trioxane with 3‐(Alkoxymethyl)‐3‐ethyloxetane

Cited by 10 publications

References 27 publications

Synthesis and Adhesive Property Study of a Mussel-Inspired Adhesive Based on Poly(vinyl alcohol) Backbone

Synthesis and Adhesive Property Study of a Mussel-Inspired Adhesive Based on Poly(vinyl alcohol) Backbone

Effect of Alkyl Side Chain Length on the Lithium-Ion Conductivity for Polyether Electrolytes

Bulk copolymerization of 1,3,5-trioxane and 1,3-dioxolane in presence of phosphotungstic acid catalyst and tetrahydrofuran as retarder: crystallinity and thermal properties

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