2001
DOI: 10.1295/polymj.33.344
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Moisture Effect on Structure and Mechanical Property of Nylon 6 as Studied by the Time-Resolved and Simultaneous Measurements of FT-IR and Dynamic Viscoelasticity under the Controlled Humidity at Constant Scanning Rate

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Cited by 21 publications
(19 citation statements)
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“…As mentioned before, master curves for humidity‐dependent stress relaxation data had already been reported, but the quantitative interpretation of the shift factor, which can be obtained in the construction process of master curves, had not been made systematically. In a previous article,30 we applied the concept of free volume proposed by Fujita and Kishimoto34 to the interpretation of the shift factor estimated for the master curve of nylon‐6 film, which was obtained successfully with our system and demonstrated the availability of this concept. We need to generalize this usefulness to various semicrystalline polymers.…”
Section: Introductionmentioning
confidence: 72%
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“…As mentioned before, master curves for humidity‐dependent stress relaxation data had already been reported, but the quantitative interpretation of the shift factor, which can be obtained in the construction process of master curves, had not been made systematically. In a previous article,30 we applied the concept of free volume proposed by Fujita and Kishimoto34 to the interpretation of the shift factor estimated for the master curve of nylon‐6 film, which was obtained successfully with our system and demonstrated the availability of this concept. We need to generalize this usefulness to various semicrystalline polymers.…”
Section: Introductionmentioning
confidence: 72%
“…This stepwise change in the RH is useful for an investigation of frequency dispersion of the mechanical property under the same humidity condition during the humidity scanning experiment. In fact, by increasing the RH in a step‐scan mode and by changing the frequency of the sample strain at each humidity, we were able to easily measure the humidity dependence of the frequency dispersion of storage ( E ′) and loss ( E ″) tensile moduli of nylon‐6 film, and smooth master curves were obtained successfully for both E ′ and E ″ 30. The successful construction of master curves suggests an applicability of the time–humidity superposition principle to nylon‐6 film.…”
Section: Introductionmentioning
confidence: 99%
“…14 In this regard, humidity-controlled dynamic viscoelastic analysis (DVA) represents a modern, sophisticated technique for detecting simultaneous changes in the sample with gradual change of relative humidity (RH), which can be varied linearly or stepwise at prescribed temperature. 15 This technique makes it possible to discuss in detail the role of moisture in the physical and mechanical character of polymers.…”
Section: Pa9-t Has Recently Received An Extensive Attention Due To a mentioning
confidence: 99%
“…The samples became softer with increasing RH and were elongated by the light tensile force applied by the DVA apparatus to prevent slackening of the sample 14 . The samples exhibited up to 7% elongation in case of the scanning at 70 ºC, as shown in figure 3c.…”
Section: Humidity-controlled Dva Measurementmentioning
confidence: 99%
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