Design of a polymerizable dithioaniline derivative with double functions of reducing volume shrinkage and initiating polymerization for LED photopolymerization

Zhan, Yuhan; Ju, Xingrong; Gao, Yanjing; Sun, Fang

doi:10.1016/j.eurpolymj.2022.111534

Cited by 8 publications

(2 citation statements)

References 25 publications

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“…The volume shrinkage during the photopolymerization was measured on laser displacement sensor (Keyence LK-G10) with previously reported methods. [26] The light source was the mercury lamp with an emission wavelength of 365 nm and the light intensity of 50 mW cm −2 . Three tests for each sample were performed and the average value was taken as the volume shrinkage.…”

Section: Samplementioning

confidence: 99%

Synthesis and Property of an Organosilicon Polyurethane Acrylate Prepolymer Containing Disulfide Bonds for Photopolymerization

Wang

Peng

Gao

et al. 2023

Macro Chemistry & Physics

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Photocurable organosilicon polyurethane acrylate materials combine the merits of both polyurethane and organosilicon and have become the most widely used class of photocurable resins due to the advantages of easy preparation and performance tunability, but they suffer from serious volume shrinkage and difficult degradation. In this article, an organosilicon polyurethane acrylate prepolymer (SSiPUA) containing disulfide bonds is designed and synthesized. The prepolymer exhibits good ability to photopolymerize and reduce the volume shrinkage. The final double bond conversion (DBC) of the system with SSiPUA reaches 92%, and the volume shrinkage is decreased to 4.9% that is much less than that (13.9%) without SSiPUA. Besides, with the increase of SSiPUA content within a certain range, the hydrophobicity, heat resistance, the tensile strength, and the elongation at break of the photocured films gradually increase. The water contact angle, initial decomposition temperature, the tensile strength, and the elongation at break reach up to 93°, 282 °C, 1.8 MPa, and 576.2%, respectively. However, the glass transition temperature is reduced with the increase of SSiPUA content owing to the excellent flexibility of polysiloxane chain segments. More significantly, the SSiPUA containing disulfide bonds endows the photocured film with good degradation properties.

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Section: Samplementioning

confidence: 99%

Synthesis and Property of an Organosilicon Polyurethane Acrylate Prepolymer Containing Disulfide Bonds for Photopolymerization

Wang

Peng

Gao

et al. 2023

Macro Chemistry & Physics

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“…Therefore, some researchers have introduced dynamic bonds into polymer chains to realize the self-healing function of the materials. The dynamic “breaking-recovering” reversible process of bonds helps to release intramolecular shrinkage stress produced during the polymerization process, thereby reducing the volume shrinkage [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Research Progress of Self-Healing Polymer for Ultraviolet-Curing Three-Dimensional Printing

Liu,

Sun,

Ren

et al. 2023

Polymers

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Ultraviolet (UV)-curing technology as a photopolymerization technology has received widespread attention due to its advantages of high efficiency, wide adaptability, and environmental friendliness. Ultraviolet-based 3D printing technology has been widely used in the printing of thermosetting materials, but the permanent covalent cross-linked networks of thermosetting materials which are used in this method make it hard to recover the damage caused by the printing process through reprocessing, which reduces the service life of the material. Therefore, introducing dynamic bonds into UV-curable polymer materials might be a brilliant choice which can enable the material to conduct self-healing, and thus meet the needs of practical applications. The present review first introduces photosensitive resins utilizing dynamic bonds, followed by a summary of various types of dynamic bonds approaches. We also analyze the advantages/disadvantages of diverse UV-curable self-healing polymers with different polymeric structures, and outline future development trends in this field.

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Effect of substituents on 1,3,5-triphenylpyrazoline as light-emitting diode-sensitive initiators in photopolymerization

Wang

Chen

Wan

et al. 2023

European Polymer Journal

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Design of a polymerizable dithioaniline derivative with double functions of reducing volume shrinkage and initiating polymerization for LED photopolymerization

Cited by 8 publications

References 25 publications

Synthesis and Property of an Organosilicon Polyurethane Acrylate Prepolymer Containing Disulfide Bonds for Photopolymerization

Synthesis and Property of an Organosilicon Polyurethane Acrylate Prepolymer Containing Disulfide Bonds for Photopolymerization

Research Progress of Self-Healing Polymer for Ultraviolet-Curing Three-Dimensional Printing

Effect of substituents on 1,3,5-triphenylpyrazoline as light-emitting diode-sensitive initiators in photopolymerization

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