Properties of bismaleimide resin modified with polyrotaxane as a stress relaxation material

Ohtsuka, Keiko; Zhao, Changming

doi:10.1002/pi.5619

Cited by 12 publications

(12 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our previous study, we modified BMI/DABPA resin with PR having methacryl groups at the ends of the side chains and reported its dynamic viscoelastic behavior 20 . The BMI/DABPA/PR alloy was found to form a homogeneous structure.…”

Section: Resultsmentioning

confidence: 99%

“…We previously reported that when BMI/DABPA resin was modified with PR having methacryl groups on the side chain, the methacryl groups reacted with the allyl groups of DABPA to form a BMI/DABPA/PR alloy with a homogeneous structure 20 . Modification of BMI/DABPA resin with PR increased the glass transition temperature compared to that of BMI/DABPA resin because of the formation of a denser crosslink network structure than that of the unmodified resin.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Properties of polyrotaxane modified maleimide resin with a phase‐separated structure

Ohtsuka

Nakamura

Itoh

et al. 2022

Polymer International

Self Cite

View full text Add to dashboard Cite

Polyrotaxane (PR) is a supramolecular polymer in which an axial polymer extends through multiple cyclic molecules. Specifically, PR comprises polyethylene glycol, ⊍-cyclodextrin and adamantane as the axial polymer, cyclic molecule and terminal blocking group, respectively. PR is a useful stress relaxation material because the cyclic polymers can freely slide and rotate in cyclic motions on the axial polymer. In this study, 4,4 0 -diphenylmethane bismaleimide (BMI)/2,2 0 -diallylbisphenol A (DABPA) resin was blended with PR as a toughness modifier; the effect of PR on the cured properties of BMI/DABPA resin is reported and the properties are related to the phase structure of BMI/DABPA/PR alloy. The BMI/DABPA/PR alloy formed a microphase-separated structure with PR particles dispersed in the BMI/DABPA resin matrix. Increasing PR concentration greatly improved the toughness, impact resistance and adhesiveness of the resin. The glass transition temperature also increased because the numerous hydroxyl groups of ⊍-cyclodextrins in PR formed intermolecular hydrogen bonds in the BMI/DABPA resin, forming a dense network structure. In contrast, owing to the small concentration ratio of PR to BMI/DABPA resin, the dielectric constant, dielectric loss tangent and water absorption were only slightly higher than those of the unmodified resin.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Properties of polyrotaxane modified maleimide resin with a phase‐separated structure

Ohtsuka

Nakamura

Itoh

et al. 2022

Polymer International

Self Cite

View full text Add to dashboard Cite

show abstract

“…Herein, TGA and DMA were conducted to investigate the thermal stability and glass transition temperatures of the blends, respectively 48,49 . Figure 8A, B shows the TGA curves and DTG curves of neat DABP/BDM system and PPENS‐DA/DABP/BDM system, respectively.…”

Section: Resultsmentioning

confidence: 99%

Enhanced toughness and thermal properties of bismaleimide resin based on the synergistic effect of reactive amino‐terminal poly(phthalazinone ether nitrile sulfone) and bisallyl bearing diphenol group

Liu

Jia

et al. 2020

Polymers for Advanced Techs

View full text Add to dashboard Cite

Bismaleimide (BMI) resins have poor toughness due to their high crosslink density, which limits their wide development and application. In this study, the amino‐terminated poly(phthalazinone ether nitrile sulfone) (PPENS‐DA) resin was designed and the curing agent of 3,3′‐diallyl‐4,4′‐biphenol (DABP) was synthesized to toughen N,N′‐(4,4′‐diphenylmethane) bismaleimide (BDM) resin. The impact strength, flexural strength and fracture surface structures of the DABP/BDM and PPENS‐DA/DABP/BDM blends were studied. The results showed that the notched impact strength of the blends with 10‐phr PPENS‐DA is 4.98 kJ/m2, which was 36% higher than that of pristine BDM/DABP blend and 200% higher than that of the 2,2′‐diallyl bisphenol A (DABPA) modified BMI resin system. The glass transition temperature (Tg) has been improved from 247 to 269°C for the blend system as evidenced by DMA. Rheological behavior analysis indicated that the blend system has a broad processing window (90‐175°C) with low viscosity of less than 1 Pa·s and low curing activation energy of 67.2 kJ/mol.

show abstract

“…In recent years, polyrotaxanes (PRs), as a strength enhancement material, composed of multiple host molecules threaded on a polymer chain with bulky end-caps have drawn much attention . For example, PR initially developed by Harada and coworkers using poly(ethylene glycol) (PEG) and α-cyclodextrin (α-CD) has been used as a cross-linker to effectively improve the mechanical properties of hydrogels .…”

Section: Introductionmentioning

confidence: 99%

“…8 In recent years, polyrotaxanes (PRs), as a strength enhancement material, composed of multiple host molecules threaded on a polymer chain with bulky end-caps have drawn much attention. 9 For example, PR initially developed by Harada and coworkers using poly(ethylene glycol) (PEG) and α-cyclodextrin (α-CD) has been used as a cross-linker to effectively improve the mechanical properties of hydrogels. 10 When an external force distorts the shape of materials crosslinked by PR, the stress focused on a portion of the polymer network can be effectively relieved by the sliding motion of α-CDs on the PEG chain in PRs.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Optical Properties of Reinforced Collagen Membranes for Corneal Regeneration through Polyrotaxane Cross-Linking

Lei

Jia

Song

et al. 2019

ACS Appl. Bio Mater.

View full text Add to dashboard Cite

Corneal transplantation is the widely accepted treatment to restore sight for corneal blindness. To date, because of the global donor cornea shortage, there is a need for alternatives to human donor corneas. Biocompatible collagen is an excellent candidate material for corneal repair in the view of biomimetics. Herein a class of polyrotaxane multiple aldehyde (PRA) crosslinkers based on the host−guest supramolecules of α-cyclodextrins and poly(ethylene glycol) is prepared to cross-link with collagen to fabricate materials for corneal repair. Aldehyde groups from rotaxanes and α-cyclodextrin units can synergistically improve the mechanical and optical properties of PRA cross-linked collagen membranes (Col-PRAs). Compared with counterparts cross-linked by traditional a cross-linker of 1-ethyl-3-(3-(dimethylamino)propyl) carbodiimide and N-hydroxy-succinimide, Col-PRAs have better mechanical properties, especially suture resistance as well as optical properties. In vivo lamellar keratoplasty results indicate that Col-PRAs not only can bear tight suturing on a rabbit cornea but also are prone to the remodeling of the epithelium and stroma of the cornea due to the outstanding cell adhesion and proliferation. These novel Col-PRAs exhibit great potential for use in the corneal regeneration.

show abstract

Properties of bismaleimide resin modified with polyrotaxane as a stress relaxation material

Cited by 12 publications

References 36 publications

Properties of polyrotaxane modified maleimide resin with a phase‐separated structure

Properties of polyrotaxane modified maleimide resin with a phase‐separated structure

Enhanced toughness and thermal properties of bismaleimide resin based on the synergistic effect of reactive amino‐terminal poly(phthalazinone ether nitrile sulfone) and bisallyl bearing diphenol group

Mechanical and Optical Properties of Reinforced Collagen Membranes for Corneal Regeneration through Polyrotaxane Cross-Linking

Contact Info

Product

Resources

About