Second heating thermogram

Homopolymerization of macroazoinimers and co-polymerization of macroinimers with a vinyl monomer yield crosslinked polyethyleneglycol or polyethyleneglycol-vinyl polymer-crosslinked block copolymer, respectively. The homopolymers and block copolymers having PEG units with molecular weights of 1000 and 1500 still showed crystallinity of the PEG units in the network structure [48] and the second heating thermograms of polymers having PEG-1000 and PEG-1500 units showed that the recrystallization rates were very fast (Fig. 3). 

Figure 7.10 Parts (a) and (b) show first and second heating thermograms of B-TPB cements respectively. Tests were carried out under constant rate analysis consisting of three cycles, heating/cooling/heating, at a rate of 10°C/min from 0 to 170°C under nitrogen purge. Tg was characterised by a change in the upward direction of the heat flow and the value was calculated by the onset of change in the heat flow. (From [21 ], with permission.)...

Figure 9- DSC thermogram of PEOX/BPADC uncatalyzed reaction, first and second heating.

Hot stage value where completely molten broad exotherm instead of Tm endotherm on DSC thermograms of first and second heating scans. 

The crystallization behavior of polypropylene modified epoxy resin was studied extensively. The crystallization of polypropylene was influenced by the addition of epoxy resin. The first cooling and second heating DSC thermograms of polypropylene, polypropylene/epoxy, polypropylene/MAH-g-PP, polypropylene/MAH-g-PP/epoxy, and dynamically cured polypropylene/epoxy blends are shown in Figs. 21.4 and 21.5 and the data obtained from DSC studies are summarized in Table 21.4 (48). 

Figure 21.5 DSC thermograms at the second heating of (a) PP, PP/MAH-g-PP, PP/epoxy, and PP/MAH-g-PP/epoxy and (b) dynamically cured PP/epoxy blends. (From Reference 48 with permission from Wiley Interscience.)...

Figure 2. DSC thermograms of C,-PAM-T at 20°C/min scan rate. Curve I first heating from 50°C to 300°C, Curve 2 first heating from -20°C to 230°C. Curve 3 second heating of the sample 2... 

Finally, the samples were heated from 40 to 180°C at a heating rate of 10°C/min to determine Tm. Tm and the heat of fusion (AHm) were calculated from the thermograms obtained during the second heating. The values of (AHm) were used to estimate x(%), which was adjusted for each sample. 

Fig. 6.1 Representative DSC thermograms of single-component samples of a a conventional LC, b an unstable GLC, and c a kinetically stable GLC. Samples were preheated to isotropic liquid to delete their thermal histories followed by cooling to room temperature for gathering the compiled second heating and cooling scans at finite rates...

Figure 3.22 DSC thermograms [second heats (a) 10 Cmin, (b)-(g) S Cmin" ] of rapidly cooled ( —200 Cmin except (c ) — S Cmin" ) equimolar ionic complexes of (a) poly disperse PVSA + (10b) (n = 12) ...

Figure 13.4 DSC thermograms (second heating scans in temperature ramps from -90 to 220°C) for (a) Pebax 1657, 1878, 1205 and (b) Pebax 1074, 3000, 1041, 6100 (curves from the bottom to the top in the graphs). The meiting temperatures are approximately marked on the abscissa axis for comparison...

Fig. 12 DSC thermogram of POSS-PCL networks from second heating run (i) 42wt% POSS content, (ii) 34 wt% POSS content, (iii) 32 wt% POSS content, (iv) 27 wt% POSS content, and (v) 22wt% POSS content. Reprinted with permission from [116]. Copyright 2008, American Chemical Society...

Fig. 3 Thermograms obtained from the second heating run of DSC at a heating rate of 1K min . Thermograms I, homonetwork from poly(s-caprolactone)dimethacrylate, CL(IOO) (100 wt% poly(s-oaprolactone)) II, CL(60)EG (60wt% poly(s-caprolactone)) III, CL(30)EG (30 wt% poly(s-caprolactone)) IV, homopolymer from poly(ethylene glycol) (PEG) monomethylether-monomethacrylate, graft-EG. Reprinted by permission from ref. [10], Copyright 2006, National Academy of Sciences, U.S.A.

Figure 6. DSC heating thermograms of PHMS-5,7-80 (sample 5, Table 2). A) first heating scan of the polymer obtained from the reaction mixture B) second heating scan C) heating scan after the polymer was annealed at 57°C for 14 hrs (sample 6, Table 2).

Figure 2.13 DSC thermograms of PLA50 after 0,98, and 126 days in vitro degradation, (a) First heating, and (b) second heating. PIA, poly(lactic acid) DSC, differential scanning calorimetry. Li S., McCarthy S., 1999a. Further investigations on the hydrolytic degradation of poly (DL-lactide). Biomaterials, 20 (1) 35—44. Reprinted with permission.

FIGURE 16.7 (a) DSC thermograms in the second heating runs for solution/precipitation PDLLA/PMMA blends with compositions from 100 0 to 0 100, and (b) Tg versus composition in solution/ precipitation PDLLA/PMMA blends. ( ) Experimental results. Line A corresponds to the weight average, and line B is drawn according to Equation 16.1 with k — 0.5. Reprinted from Ref. 71. Copyright 2002, with permission from John Wiley Sons, Inc. 

Figure 3. DSC thermograms recorded during the second heating scan of PPDL, PLA and P(PDL-co-LA) copolymer formed byU copolymerization of Lactide and PDL (1 1 mol/mol) at 120 C in the presence of Novozyme-435 and Sn(0ct)2- A scanning rate of 10 "CYmin was used...

Figure 5 DSC thermogram of poly[l,l -ferrocenylene( -/iexa-decyl)silyne] [1(16)] measured imder nitrogen at a heating rate of 10°C/min during the second heating scan after the sample had been annealed at 150°C for 10 min.

FIGURE 6.7 DSC thermograms of Co/PPOA nanocomposite while heating in nitrogen flow up to 350°C at heating rate 10°C/min (1 - first heating, 2 - second heating). 

Figure 10.13 DSC thermograms of FPAEK (FH0.5) during the first cooling and second heating scans at a rate of 10°C mim [13]. Reproduced with permission from Wiley.

Figure 5, Thermal properties of alicyclic polycarbonates poly(I J-cyclohexene carbonate) (PCHC), poly(limonene carbonate) (PLC), poly(4-vinyl- f2 cyclohexene carbonate) (PVCHC). (a) TGA thermograms (samples were run under an N2 atmosphere with a heating rate of 20 C/min). (b) DSC thermograms (samples were run under an N2 atmosphere with a heating and cooling rate of 10 C/min data shown are from the second heat).

Figure 13.4 DSC thermogram of SPS measured at a heating rate of 20°C/min and a cooling rate of -20°C/min. (a) First heating of the almost amorphons sample, (b) Cooling of the sample melted at 300°C. (c) Second heating of the crystallized...

Figure 9.6 DSC thermograms for compression-molded 60/40 HBA/PET copolyester specimens during (a) the heating cycle and (b) the cooling cycle at a rate of 20°C/min, where curve (1) is for the first heating or cooling cycle, curve (2) is for the second heating or coofing cycle, and curve (3) is for the third heating or cooling cycle.

Figure 10.32 DSC heating thermograms of PBHA/PAA blends at various compositions crystallized from the isotropic meit (second run, heating rate 10 K/min).The traces are normalized to 1 mg samples. Reprinted from Praceiia and Bresci [131], Copyright 1995, with permission from Taylor Francis.

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