Thermal Analysis of Polymeric Materials Part 1 pot

... 6 1. 1.4 The History of Covalent Structures 9 1. 1.5 The History of Natural Polymers 9 1. 1.6 The History of Synthetic Polymers 11 1. 2 Nomenclature 1. 2 .1 Source- and Structure-based Names 13 1. 2.2 ... VIII Acknowledgments VIII 1 Atoms, Small, and Large Molecules 1. 1 Microscopic Description of Matter and History of Polymer Science 1. 1 .1 History 1 1 .1. 2 Molecu...

Ngày tải lên: 11/08/2014, 05:23

... 513 – 518 ; Predecki P, Statton WO (19 66) J Appl Phys 37: 4053–4059; (19 67) Appl Polymer Symp 6: 16 5 18 1; (19 67) J Appl Phys 38: 414 0– 414 4; Lindenmeyer PH (19 66) J Polymer Sci, Part C 15 : 10 9 12 7; ... Interpretation—A Review. Polymer 26: 323–347 and 11 23 11 33. 52. Wunderlich, B (19 97) The Basis of Thermal Analysis. In Turi E ed, Thermal Character- ization of Po...

Ngày tải lên: 11/08/2014, 06:20

... energy of defect formation as 44 kJ mol 1 . 2 Basics of Thermal Analysis __________________________________________________________________ 74 1 Sadi Carnot, 18 24, lived 17 96 18 32, French army officer ... values of 5 k should be compared to the CC bond length of 0 .15 4 nm. 1. 3 .10 Stiff Chain Macromolecules Four types of macromolecules of largely different Kuhn le...

Ngày tải lên: 11/08/2014, 05:23

... distribution at about 2 10 13 Hz is responsible for the leveling of C p between 200 and 250 K, and the value of C p accounts for two degrees of freedom, i.e., is about 16 17 J K 1 mol 1 or 2 R. 2.3 Heat ... entropies of transition, when added, give a similar value (9.6 J K 1 mol 1 ) as the entropy of fusion of polyethylene (9.9 J K 1 mol 1 ). The high temperature o...

Ngày tải lên: 11/08/2014, 06:20

... (19 15) J Am Chem Soc 37: 970 (11 3 J K  1 mol  1 at concentrations of 0.005 mol L  1 ). For an early description and classification of conformational defects in crystals, see Wunderlich B (19 80) ... Thermodynamic Description of the Defect Solid State of Linear High Polymers. Polymer 5: 12 5 13 4; The Melting of Defect Polymer Crystals. Ibid 5: 611 –624. 25. Ehrenfest P...

Ngày tải lên: 11/08/2014, 06:20

... 382 765 1, 5 21 10.0 0.8 3.8 7.6 11 .5 38 76 15 3 25.0 0.3 1. 5 3.0 4.5 15 31 61 50.0 0.2 0.8 1. 5 2.3 8 15 31 100.0 0 .1 0.4 0.8 1. 2 4 8 15 15 0.0 0 .1 0.2 0.5 0.8 3 5 10 ___________________________________________________________________ Fig. ... ( Jcm 2 ) ____________________________________________________ T(K) 0 .1 0.5 1. 0 1. 5 5.0 10 .0 20.0 __________________...

Ngày tải lên: 11/08/2014, 06:20

... O= __________________________________________________________________ H 217 .9 436 413 3 91 463  C 718 .4 413 348 615 812 292 615 8 91 3 51 728 N 472.6 3 91 292 615 8 91 1 61 418 946  O 247.5 463 3 51 728  13 9 485 F 76.6 563 4 41  270  18 5  Si 368.4 ... Calorimetry ___________________________________________________________________ 311 t (min) T (K) (index) _________...

Ngày tải lên: 11/08/2014, 06:20

... Eq. (1) . Figure 4.95 illustrates the evaluation of the constant - as the slope of a plot of the square of the reciprocal of the uncorrected specific heat capacity as a function of the square of ... different value of Online elimination of the effects of asymmetry and different pan mass, as described in Appendix 11 , should improve the ease of measurement. This method...

Ngày tải lên: 11/08/2014, 06:20

... Wunderlich B (19 97) J Thermal Analysis 49: 57–70; Thermochim Acta 2 91: 85–94; (19 96) J Polymer Sci, Part B: Polymer Phys 34: 29 41 2952; J Thermal Analysis 47: 10 13 10 26; Thermochim Acta 284: 1 19 . 42. ... Anal Chem covers all thermal analysis: Wendlandt WW (19 82) 54: 97R; (19 84) 56: 250R. (19 86) 58: 1R; Dollimore D, 60: 274R; (19 90) 62: 44R; (19 92) 64: 14 7R; (19...

Ngày tải lên: 11/08/2014, 06:20

... average S i of only 2.3 1. 5 J K 1 mol 1 and 18 8 smectic mesophases, of 11 .7±7.8 J K 1 mol 1 , less than the positional disordering of a single atom of Sect. 5.4. Polymeric liquid crystals do not ... 5 .11 8 and 5 .11 9, while condis crystals have the highest entropy of isotropization. Figure 2 .10 3 indicates a value of n 1 S c for polymers, and n1S c + S o + S...

Ngày tải lên: 11/08/2014, 06:20