Crosslinking of Trans-1,4-polyisoprene by γ-ray radiation

Zhao, Hui; Zhang, Chunbo; Liu, Guoming; Li, Jikun; Yang, Bo; Ma, Hongchao; Zhang, Xiuqin; Wang, Dujin

doi:10.1016/j.polymdegradstab.2022.109869

Cited by 10 publications

(11 citation statements)

References 63 publications

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“…It has been confirmed in our previous study 24 that TPI belongs to the irradiation cross-linking type polymer. As shown in Fig.…”

Section: Resultssupporting

confidence: 77%

“…The crosslinking density was calculated from equilibrium swelling experiments as described in detail in our previous work 24 (ESI, section 1 †). 2.3.2 Gel content and the crosslinking density (V e ).…”

Section: Polymer Chemistry Papermentioning

confidence: 99%

“…In the previous study, we found that xTPI crystallizes into the β form after melting and recrystallization. 24 Fig. 7c and d show the WAXS curves of recrystallized samples.…”

Section: Crystallization Structure and Crystallinity Of G-xtpimentioning

confidence: 99%

“…26 Upon increasing the absorbed dose, the crystallinity of TPI decreased from 34% to 10%. 24 With an absorbed dose of 700 kGy, TPI still exhibits a certain degree of crystallinity (∼18%), indicating that the segments between adjacent crosslinks are still long enough for crystallization. Further increase in the absorbed dose leads to unfavorable degradation and a severe decrease in mechanical properties.…”

Section: Introductionmentioning

confidence: 98%

“…TPI can be effectively cross-linked by high energy radiation, including γ-ray 24,25 or electron beam. 26 Upon increasing the absorbed dose, the crystallinity of TPI decreased from 34% to 10%.…”

Section: Introductionmentioning

confidence: 99%

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Achieving high elasticity of trans-1,4-polyisoprene with a combination of radiation crosslinking and thiol–ene grafting

et al. 2023

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“…It has been confirmed in our previous study 24 that TPI belongs to the irradiation cross-linking type polymer. As shown in Fig.…”

Section: Resultssupporting

confidence: 77%

Section: Polymer Chemistry Papermentioning

confidence: 99%

“…In the previous study, we found that xTPI crystallizes into the β form after melting and recrystallization. 24 Fig. 7c and d show the WAXS curves of recrystallized samples.…”

Section: Crystallization Structure and Crystallinity Of G-xtpimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Achieving high elasticity of trans-1,4-polyisoprene with a combination of radiation crosslinking and thiol–ene grafting

et al. 2023

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Effect of Crosslinking on the Stretch‐Induced Polymorphic Transition of Trans‐1,4‐Polyisoprene

Yang,

Zhang,

Zhao

et al. 2023

Macro Chemistry & Physics

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Trans‐1,4‐polyisoprene (TPI) is a typical polymorphic polymer with two crystal modifications. The transition between two crystal modifications (α to β) occurs during stretching. The underlying mechanism is still under debate. In this work, the effects of crosslinking and strain rates on the crystal transition are studied. The TPI, which mainly contains α crystal (α−TPI), is crosslinked by γ‐ray radiation. The results show that crystalline morphology does not change after radiation. The melting temperature and yield stress of crosslinked α−TPI decrease with the irradiation dose. The structural evolution is studied by in situ wide‐angle X‐ray diffraction and small‐angle X‐ray scattering. During stretching, the content of β crystal (Xβ) of crosslinked α−TPI increases in the strain‐hardening region. The Xβ is lower in the sample with a higher radiation dose under the same strain. On the other hand, with increasing strain rate, the Xβ of the crosslinked sample exhibits a non‐monotonic variation. A parallel mechanical model consisting of amorphous and crystal fibrils is proposed to explain the experimental observations.

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Influence of different gamma radiation doses on the physical, chemical and thermal properties of antimicrobial active packaging of poly (butylene adipate co-terephthalate) (PBAT) films additivated with orange essential oil

de Andrade,

Caetano,

de Lima Silva

et al. 2023

Polym. Bull.

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Crosslinking of Trans-1,4-polyisoprene by γ-ray radiation

Cited by 10 publications

References 63 publications

Achieving high elasticity of trans-1,4-polyisoprene with a combination of radiation crosslinking and thiol–ene grafting

Achieving high elasticity of trans-1,4-polyisoprene with a combination of radiation crosslinking and thiol–ene grafting

Effect of Crosslinking on the Stretch‐Induced Polymorphic Transition of Trans‐1,4‐Polyisoprene

Influence of different gamma radiation doses on the physical, chemical and thermal properties of antimicrobial active packaging of poly (butylene adipate co-terephthalate) (PBAT) films additivated with orange essential oil

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