Poly(hydroxyether terephthalate ester): Synthesis, characterization and competitive specific interactions in mixtures with poly(ethylene oxide)

Liu, Bingquan; Zheng, Sixun

doi:10.1016/j.polymer.2005.07.095

Cited by 7 publications

(6 citation statements)

References 34 publications

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“…In other words, the spectrum of phenoxy clearly shows that a high degree of intramolecular hydrogen bonds is predominant in the polymer. It is well known from the literature that this part of the spectrum reacts very sensitive to alterations of interactions 45–47. This can also be demonstrated for the blends under investigation.…”

Section: Resultssupporting

confidence: 52%

Investigation of the thermal decomposition behavior and kinetic analysis of PTT/phenoxy blends

Farmahini-Farahani

Jafari

Khonakdar

et al. 2008

J of Applied Polymer Sci

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Thermal decomposition of binary blends composed of poly(trimethylene terephthalate) (PTT) and a phenoxy resin, namely poly(hydroxy ether) of bisphenol A, and prepared by melt blending was studied using thermogravimetric analysis. The thermal decomposition behavior of the blends could be explained in terms of formation and loss of hydrogen bonds and appearance of both low and high molecular weight species due to transesterification reaction between hydroxyl groups of phenoxy with ester bonds of PTT. The kinetics of decomposition reaction was analyzed by Freeman-Carroll, Friedman, Chang, and Vachuska-Voboril methods. It was found that all of the methods well described the decomposition reaction of the blends. The correlation between the calculated values and the chemical nature of the blends was acceptable. Among all the investigated methods the Chang method showed the best correlation with the experimental data. FTIR spectroscopy was employed to study the chemical structure of the blends. The results revealed strong interaction between the blend components in the form of hydrogen bonding. Progress of these interactions was followed with time and temperature. The effects of blending and loss of hydrogen bonding on degradation behavior in this kind of reactive blends were emphasized.

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Section: Resultssupporting

confidence: 52%

Investigation of the thermal decomposition behavior and kinetic analysis of PTT/phenoxy blends

Farmahini-Farahani

Jafari

Khonakdar

et al. 2008

J of Applied Polymer Sci

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“…1,3-Diphenoxy-2-propanol (DPP) was synthesized according to the literature method. [4] Benzophenone (BP) was purchased from Shanghai Reagent Co., Shanghai, China. All the solvents, such as N, N -dimethylformamide (DMF) and toluene, were obtained from Shanghai Reagent Co., China.…”

Section: Methodsmentioning

confidence: 99%

Miscibility and Hydrogen Bonding Interactions in Blends of Poly(hydroxyether ketone) and Poly(4-vinyl pyridine)

Zhu

Yang

et al. 2011

Journal of Macromolecular Science, Part B

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The miscibility and specific intermolecular interactions in the blends of poly(hydroxyether ketone) (PHEK) and poly(4-vinylpyridine) (P4VP) were investigated by means of differential scanning calorimetry (DSC) and Fourier transform infrared (FTIR) spectroscopy. The PHEK/P4VP blends displayed single, composition-dependent glass transition temperatures (T g 's), indicating that the blends are miscible in the amorphous state. The miscibility was further confirmed by the equilibrium melting point depression of PHEK in the blends. The FTIR spectroscopy indicates that there were intermolecular specific interactions between PHEK and P4VP, involving intermolecular (and/or intramolecular) hydrogen bonding interactions including OH . . . . O C< and OH . . . . OH of PHEK, and OH of PHEK vs. pyridine rings of P4VP. The strength of these interactions was examined in terms of the determinations of several equilibrium constants according to the Coleman and Painter model. It indicated that the strength of the hydrogen bonding interactions was in the order from weak to strong: OH . . . O C< and OH . . . OH of PHEK and OH of PHEK vs. pyridine rings.

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“…In addition, the very low glass transition temperature ( T g ≈ − 123 °C) of PDMS could endow these block copolymers with superior mechanical properties at low temperature. Poly(hydroxyether of bisphenol A) (PH) is an important thermoplastic polymer; it is a tough and ductile thermoplastic with high cohesive strength and good impact resistance 12–18. In previous work, it was reported that the inclusion of an alternating block copolymer comprised of PH and PDMS into epoxy resin can significantly improve the toughness of thermosets 19…”

Section: Introductionmentioning

confidence: 99%

Poly(hydroxyether of bisphenol A) ‐alt‐polydimethylsiloxane: a novel thermally crosslinkable alternating block copolymer

Wang¹,

Gong²,

Zheng³

2008

Polymer International

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BACKGROUND: An important strategy for making polymer materials with combined properties is to prepare block copolymers consisting of well-defined blocks via facile approaches. RESULTS: Poly(hydroxyether of bisphenol A)-block-polydimethylsiloxane alternating block copolymers (PH-alt-PDMS) were synthesized via Mannich polycondensation involving phenolic hydroxyl-terminated poly(hydroxyether of bisphenol A), diaminopropyl-terminated polydimethylsiloxane and formaldehyde. The polymerization was carried out via the formation of benzoxazine ring linkages between poly(hydroxyether of bisphenol A) and polydimethylsiloxane blocks. Differential scanning calorimetry and small-angle X-ray scattering show that the alternating block copolymers are microphase-separated. Compared to poly(hydroxyether of bisphenol A), the copolymers displayed enhanced surface hydrophobicity (dewettability). In addition, subsequent crosslinking can occur upon heating the copolymers to elevated temperatures owing to the existence of benzoxazine linkages in the microdomains of hard segments.CONCLUSION: PH-alt-PDMS alternating block copolymers were successfully obtained. The subsequent self-crosslinking of the PH-alt-PDMS alternating block copolymers could lead to these polymer materials having potential applications.

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Poly(hydroxyether terephthalate ester): Synthesis, characterization and competitive specific interactions in mixtures with poly(ethylene oxide)

Cited by 7 publications

References 34 publications

Investigation of the thermal decomposition behavior and kinetic analysis of PTT/phenoxy blends

Investigation of the thermal decomposition behavior and kinetic analysis of PTT/phenoxy blends

Miscibility and Hydrogen Bonding Interactions in Blends of Poly(hydroxyether ketone) and Poly(4-vinyl pyridine)

Poly(hydroxyether of bisphenol A) ‐alt‐polydimethylsiloxane: a novel thermally crosslinkable alternating block copolymer

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