Temperature dependence of the storage

Figure 5. From left to right temperature dependence of the storage modulus at 0.5 Hz, and of the reduced stress, ( 1.03). Key , PDMS-B1 O, PDMS-B2 X, PDMS-B6 A, PDMS-B7.

Fig. 22. Temperature dependence of the storage G (gem 2) and of the loss G" (gem 2) modulus for PDEAAm solutions at frequency 1 Hz. From Ilavsky and Hrouz [30]...

Fig. 39a. Temperature dependence of the storage modulus G (filled circles) and loss modulus G" (Open Circles), measured at 0.5 Hz, for the l.c. elastomer No. 2d in Table 10 b. Detailed section of Fig. 39a...

Fig. 2. Temperature dependence of the storage modulus G, loss modulus G", relaxation time t and ratio (n2/nj) of the equilibrium numbers of conformers for a single relaxation time model...

Fig. 22. Effect of the weight fraction of urea on the temperature dependence of the storage and loss moduli of poly(2-hydroxyethyl methacrylate) 1 = 0.00 2 = 0.021 3 = 0.039 4 = 0.0 5 = 0.115...

Figure 2. Temperature dependence of the storage modulus E of the samples indicated on the plot at 1 Hz.

Figure 7. Temperature dependence of the storage and loss modulus of 2,4-T-2P at 11 Hz for 33, 39, and 43 wt % hard-segment concentration...

Figure 10.12. Temperature dependence of the storage modulus E and loss modulus E" of different PEEK/SWCNT nanocomposites with 1 wt% CNT content, obtained from DMA measurements performed in the tensile mode at frequency 1 Hz and heating rate of 2°C/min. The inset is a magnification showing the increment in Tg for the nanocomposites. From ref 11.

The temperature dependences of the storage modulus G are given in Figure 12.13 for unfilled and filled EPDM. The dynamic mechanical experiments were conducted from -100 to 150°C at a frequency of 1 Hz in tensile mode using a DMA (TA 2980). Heating rate was 5°C/min. 

Figure 7 shows temperature dependencies of the storage (G ) and loss moduli (G") for both styrene/acrylonitrile gradient copolymers described above. For comparison, results for a random copolymer are also shown (Mn=39,000, Mw/Mn=1.08, < )AN=0.45). 

Figure 5. Temperature dependence of the storage modulus, E, for MD1/MD1-POTMD 1000 polycocyclotrimers containing 33.4 (A), 42.9 (B), 50 (C), and 60 (D)wt % of hard segments.

Spike temperature is more important than the presence of water. This is illustrated in Fig. 3.8, where the heat distortion point of the laminates (defined as the onset of the relaxation region from the temperature dependence of the storage modulus) is plotted against thermal spike temperature. The reduced stability of the resins at higher thermal spike temperatures appears to reflect the chemistry by which the modifiers interact with the base epoxy resin. 

Figures 5.21(a) and (b) give the temperature dependencies of the storage modulus fi and loss modulus fi", respectively, of samples with different levels of crystallinity probed in isochronal dynamic experiments at a frequency of 1.0 Hz in a...

Fig. 5.22 The temperature dependences of the storage modulus and loss modulus of the partially crystalline blends of PET in the low temperature range below the glass-transition temperature of 67 °C of the fully glassy reference material (from filers and Breuer (1963) courtesy of Elsevier).

Figure 34-1. Temperature dependence of the storage modulus of a styrene-butadiene rubber that has been reinforced with various amounts of a poly(styrene) latex. (After data by G. Kraus et at.)...

Figure 10.7 (a) Temperature dependence of the storage modulus (E ) and mechanical tan 6 of PVA film and PVA/ND nanocomposites, (b) Relative humidity dependence ofthe storage modulus (E ) of PVA film and PVA/ND nanocomposites at 60 C. Reprinted with permission from [63] Copyright (2011) American Chemical Society. 

From the temperature dependence of the storage modulus, Cheng and Rodrigues [195] conclude that the crosslinking enthalpy is 10.5 kJ/mol. With... 

Fig. 137. Temperature dependence of the storage modulus, measured at (B = 0.314 rad/s, for aqueous p-94 solutions of various concentrations in wt% ( ) 27.0 ( ) 32.0 (O) 37.0 H, S and T denote hard, soft and turbid gels, respectively. Reproduced from J ys Chem [Ref. 381] by the courtesy of the authors and of The American Chonical Society...

Fig. 208. Temperature dependence of the storage Young modulus of 3% aqueous gels of agarose of various molecular weight distributions ...

Fig. 240. Temperature dependence of the storage moduli G and the loss moduli G" upon cording gellan solutions of various concentration T, is the temperature at the inftection of the cor g curves for G frequency 1 Hz cooling rate O C nin. Reproduced from Food Hydioccdl [Rdl 622] by the courtesy of the authors and of Oxford Univerdty Press...

Fig. 244A, B. Temperature dependence of the storage Young modulus E and the loss tangent tan S at 2.5 Hz and small strain amplitude A for a potassium type gellan (called FI) B for the same gdlan in the presence of 100 mmol/i KQ (called F3 gellan concentration in wt% (a) 0.7 (b) (c) 1.A (d)...

FIGURE 9.1 Temperature dependence of the storage and loss moduli of chitosan films with the indicated draw ratios. The films were heat-treated at 120°C for 2h. Solvents were (a) acetic acid, (b) formic acid, (c) butyric acid, and (d) propionic acid. 

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