X‐Ray and Electron Diffraction Study of Poly(<i>p</i>‐dioxanone)

Furuhashi, Yukiko; Nakayama, Atsushi; Monno, Teruo; Kawahara, Yutaka; Yamane, Hideki; Kimura, Yoshiharu; Iwata, Tadahisa

doi:10.1002/marc.200400399

Cited by 34 publications

(37 citation statements)

References 22 publications

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“…The corresponding d spacings calculated from the Bragg equation are about 4.00 ( d 210 ), 3.71( d 020 ), and 3.06 ( d 310 ) Å, respectively. These values are in agreement with those reported about PPDO by Furuhashi et al . and Ooi and Cameron, and have no change with the addition of PDO.…”

Section: Resultssupporting

confidence: 93%

The influence of coexisted monomer on thermal, mechanical, and hydrolytic properties of poly(p‐dioxanone)

Zhou

Wen

et al. 2016

J of Applied Polymer Sci

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Poly(p‐dioxanone) (PPDO), a typical aliphatic poly(ether‐ester), is generally synthesized via ring‐opening polymerization of 1,4‐dioxan‐2‐one (p‐dioxanone, PDO) monomer. However, a quite amount of PDO monomer should coexist with PPDO product due to the characteristics of the equilibrium polymerization. To clarify the effects of PDO on the properties of PPDO, a series of PPDO/PDO mixtures with different PDO content were prepared by adding PDO to pure PPDO. The thermal, mechanical, and hydrolytic properties of PPDO and PPDO/PDO mixtures were investigated systematically. It reveals that the existence of PDO in the polymer can act as plasticizer to facilitate the crystallization of PPDO, but the increasing of PDO content deteriorates the mechanical properties of the polymers, especially when the PDO loading is more than 3 php. The PDO does not distinctly affect PPDO thermal decomposition, but obviously accelerates the PPDO hydrolytic degradation. This work may provide an important reference for the industrialization and application of PPDO. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43483.

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Section: Resultssupporting

confidence: 93%

The influence of coexisted monomer on thermal, mechanical, and hydrolytic properties of poly(p‐dioxanone)

Zhou

Wen

et al. 2016

J of Applied Polymer Sci

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“…Figure 2 also gives the information of crystal structure in PPDO matrix, it clearly shows that various PPDO/OVMT nanocomposites have the same characteristic diffraction peaks at 2 θ = 21.9, 23.7, and 29.3° as pure PPDO does,15 which attribute to the reflection of (210), (020), and (310), respectively. The results suggest that there is no significant effect of the OVMT on the crystal structure of the matrix of PPDO, the same phenomena also were found in the PPDO/MMT nanocomposites.…”

Section: Resultsmentioning

confidence: 99%

“…PPDO also exhibits good mechanical performance with high tensile strength and excellent flexibility, which make it a good candidate for universal uses, such as films, molded products, laminates, foams, non‐woven materials, and adhesives. Accordingly, PPDO has attracted the interest of researchers on its synthesis,5–11 properties,12–20 and applications21, 22 in recent years. However, PPDO has no distinct advantage on mechanical strength while it compares with commercialized aliphatic polyester polylactide (PLA).…”

Section: Introductionmentioning

confidence: 99%

Modeling of the Adsorption of Organic Compounds on Polymeric Nanofiltration Membranes in Solutions Containing Two Compounds

et al. 2005

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The adsorption of organic compounds in aqueous solution on polymeric nanofiltration membranes is studied; this process is one of the most important fouling mechanisms influencing the flux and retention behavior of nanofiltration membranes. It is shown that the adsorption of dissolved organic compounds on polymeric nanofiltration membranes is comparable to that on activated carbon. Freundlich and Langmuir isotherms are used to describe the relation between the adsorbed mass on the membrane and the equilibrium concentration of the organic compound in a single-compound solution. Based on these results, three models for the adsorption of solutions containing several compounds [i.e., the simple competitive adsorption model (SCAM), the model of Jain-Snoeyinck, and the model of Butler-Ockrent] were used to predict the adsorption behavior of an organic compound in an aqueous solution containing two compounds. The results of the three models were compared to experimental observations. It is shown that the SCAM allows a good prediction of the adsorption behavior.

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“…The effect of clay incorporation on the crystal structure of PPDO in the nanocomposites was studied by XRD. Figure 4 illustrates the XRD patterns of neat PPDO and its nanocomposites, which were crystallized at 70°C for 24 h. As shown in Figure 4, all nanocomposites samples show three main characteristic diffraction peaks at 2θ = 21.9°, 23.7°, 29.3° as neat PPDO does,32 which are attributed to the reflection of (210), (020), and (310), respectively. In addition, it also should be noticed that the intensities of the diffraction peaks of PPDO were reinforced when the loading of HNTs and OAT was below 5 wt %, and reduced gradually when HNTs content reach or beyond 5 wt %.…”

Section: Resultsmentioning

confidence: 96%

The influence of the surface character of the clays on the properties of poly(p‐dioxanone)/fibrous clay nanocomposites

Qiu

Zhang

Huang

et al. 2012

J of Applied Polymer Sci

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Two different fibrous clays, halloysite nanotubes (HNTs) and organically modified attapulgite (OAT), were chosen to prepare poly(p-dioxanone) (PPDO)/clay nanocomposites by in-situ polymerization. The influence of surface character and geometric structure of the clays on the properties of the nanocomposites were investigated systematically concerning with their crystallization behaviors, thermal stabilities, rheological behaviors, and mechanical performances. The effect of clay content on the properties of the nanocomposites was also dis-cussed, taking PPDO/HNTs nanocomposites for example. The results showed that HNTs was more effective in improving the crystallization rate, thermal stability as well as mechanical performance. In addition, the crystallization rate and rigidity of nanocomposites increased with increasing HNTs loading. V C 2012 Wiley Periodicals, Inc. J Appl Polym Sci 125: E247-E259, 2012

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X‐Ray and Electron Diffraction Study of Poly(p‐dioxanone)

Cited by 34 publications

References 22 publications

The influence of coexisted monomer on thermal, mechanical, and hydrolytic properties of poly(p‐dioxanone)

The influence of coexisted monomer on thermal, mechanical, and hydrolytic properties of poly(p‐dioxanone)

Modeling of the Adsorption of Organic Compounds on Polymeric Nanofiltration Membranes in Solutions Containing Two Compounds

The influence of the surface character of the clays on the properties of poly(p‐dioxanone)/fibrous clay nanocomposites

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