Morphology and mechanical properties of a phase separated and a molecular composite 30% PBT/70% ABPBI triblock copolymer

Krause, Stephen; Haddock, Tim; Price, Gary E.; Adams, W. Wade

doi:10.1016/0032-3861(88)90323-0

Cited by 49 publications

(15 citation statements)

References 14 publications

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“…[4,14,15] The cross-linking of the hybrid network is also thought to be the major contributor to inhibition of large-scale plastic deformation, which was not observed in creep experiments (data not shown).…”

Section: Morphology Characterizationmentioning

confidence: 95%

“…While there is a tremendous body of literature on the mechanical properties of non-ordered polymerinorganic hybrid materials, [8][9][10][11][12] studies on mechanical properties of ordered organic-inorganic hybrids are very limited. [13][14][15] Such studies are desirable, however, as ordered systems may provide improved property profiles over their unordered counterparts.…”

Section: Communicationmentioning

confidence: 99%

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Tuning Mechanical Properties of Block Copolymer/Aluminosilicate Hybrid Materials

Verploegen¹,

Dworken²,

Faught³

et al. 2007

Macromol. Rapid Commun.

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In this work the primary mechanical property profiles of a specific class of nano‐structured polymer/inorganic hybrid materials are characterized. By utilizing sol‐gel aluminosilicate synthesis with amphiphilic polyisoprene‐block‐poly(ethylene oxide) block copolymers as structure‐directing agents, block copolymer/aluminosilicate hybrid materials are prepared with nanometer scale hexagonally packed cylinders and lamellae of the inorganic hybrid components, as evidenced by small‐angle X‐ray scattering. Systematic thermal and dynamic mechanical analyses are performed on these hybrids as well as on the constituting components. Results reveal two transitions from the low temperature, glassy state of the hybrids into high temperature elastic plateau regions, with moduli that vary over orders of magnitude as a function of composition and morphology. The first transition can be assigned to the glass transition of the PI domains while the second is ascribed to a temperature induced softening of the organic components within the PEO/hybrid domains. The results suggest that in the present nanostructured block copolymer/aluminosilicate hybrid materials composition and morphology provide a powerful tool to tailor mechanical property profiles.magnified image

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Section: Morphology Characterizationmentioning

confidence: 95%

Section: Communicationmentioning

confidence: 99%

Tuning Mechanical Properties of Block Copolymer/Aluminosilicate Hybrid Materials

Verploegen¹,

Dworken²,

Faught³

et al. 2007

Macromol. Rapid Commun.

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“…One approach that has been proposed to solve this problem is to chemically bond the rigid‐rod molecules to the random coil polymers in a block or graft copolymer. However, only a few examples of this approach have been reported 4–6…”

Section: Introductionmentioning

confidence: 99%

Preparation of polyimide/nylon 6 graft copolymers from polyimides containing ester moieties: Synthesis and characterization

Pae

2005

J of Applied Polymer Sci

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Polyimide-g-nylon 6 copolymers were prepared by the polymerization of phenyl 3,5-diaminobenzoate with several diamines and dianhydrides with a one-step method. The polyimides containing pendant ester moieties were then used as activators for the anionic polymerization of molten -caprolactam. In the graft copolymer syntheses, the phenyl ester groups reacted quickly with caprolactam anions at 120°C to generate N-acyllactam moieties, which activated the anionic polymerization. The thermal stability and chemical resistance were dramatically increased by the incorporation of only 5 wt % polyimide in the graft copolymers.

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“…[12 -14] However, the difficulty in producing well-tailored block copolymers has hindered an unambiguous verification of theoretical models. [15,16] Full Paper: Block copolymers containing a rigid poly(pbenzamide) and a flexible poly(propylene glycol) segment were synthesized by coupling aniline terminated poly(pbenzamide) with either poly(propylene glycol) or poly-(propylene glycol) monobutyl ether activated with terminal p-(chlorocarbonyl)benzoyl end-groups. These coupling reactions were carried out at temperatures between -22 8C and 40 8C, with various feed reagent ratios.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Block Copolymers from Poly(p-benzamide) and Poly(propylene glycol)

Rivas¹,

Canessa

Luna

et al. 2001

Macromol. Chem. Phys.

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Morphology and mechanical properties of a phase separated and a molecular composite 30% PBT/70% ABPBI triblock copolymer

Cited by 49 publications

References 14 publications

Tuning Mechanical Properties of Block Copolymer/Aluminosilicate Hybrid Materials

Tuning Mechanical Properties of Block Copolymer/Aluminosilicate Hybrid Materials

Preparation of polyimide/nylon 6 graft copolymers from polyimides containing ester moieties: Synthesis and characterization

Synthesis and Characterization of Block Copolymers from Poly(p-benzamide) and Poly(propylene glycol)

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