Fundamentals of Polymer Engineering Part 1 pdf

... Inc. 4.2AnalysisofSemibatchReactors156 4.3MWDofARBPolymerizationinHomogeneous Continuous-FlowStirred-TankReactors166 4.4AdvancedStageofPolymerization169 4.5Conclusion174 Appendix4 .1: SimilaritySolutionofStep-Growth PolymerizationinFilmswithFiniteMassTransfer175 References1 81 Problems1 81 5.Chain-GrowthPolymerization188 5.1Introduction188 5.2RadicalPolymerization192 5.3KineticModelofRadica...

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... weight of a species of degree of polymerization n such that W t ¼ Total weight of polymer ¼ P 1 n 1 W n * 1: 4:2Þ By definition, the weight-average molecular weight, M w , is given by M w ¼ P 1 n 1 W n *M n W t 1: 4:3Þ where ... moles of a polymer of chain length equal to n in a given sample, one can write N t n ¼ W n * M n 1: 4:6Þ The total number of moles of pol...

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... J., 21, 17 5 17 9, 19 89. 13 . Fabris, H. J., Synthetic Polymeric Adhesives, in Comprehensive Polymer Science, G. Allen and J. C. Bevington (eds.), Pergamon, London, 19 89, Vol. 7, pp. 13 1 17 8. 14 . ... acetate copolymer (EVA). Vinyl acetate is about 10 15 surface gloss, and melt adhesive properties of EVA. Ethylene–acrylic acid copolymer. Acrylic acid content varies between 1...

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... 6 polymerization in batch reactors: dl 0 dt ¼k 2 l 2 0 þ k 0 2 Wðl 1  l 0 Þþk 1 C 1 W  k 0 1 P 1 dl 1 dt ¼ k 1 WC 1  k 0 1 P 1 þ k 3 l 0 C 1  k 0 3 ðl 0  P 1 Þ dl 1 dt ¼ k 1 WC 1  k 0 1 P 1 þ ... reaction of CD can be written as follows: A 2 A 1 þ CDR 1 ! R 1 k 1 A 2 A 1 CD A 1 A 2 þ CDR 1 k 2 ! R 1 k 2 * A 1 A 2 CD A 1 *...

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... 4g 1 g 3 Þ 0:5 2g 1 ð4:2:20bÞ A 1 ¼ b 0 d 1 d 2 g 1 ð4:2:20cÞ A 2 ¼ b 0 þ b 1 d 1  b 2 d 2 1 d 1 g 1 ðd 1  d 2 Þ ð4:2:20dÞ A 3 ¼ b 0 þ b 1 d 2  b 2 d 2 2 g 1 d 2 ðd 1  d 2 Þ ð4:2:20eÞ g 1 ¼ ... b i Þ 1 a 1 Þa w =a 5 b n1 ¼ 2½b b i 1 a 1 Þa w =a 5 c n1 ¼ 2c=a 5 a d1 ¼ a w 1 þba w Þ b d1 ¼ 1 þba w Þw e þ ba 2 w c d1 ¼ ba w w e ðA4Þ f 1 ðl 00 Þ...

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... help of Eqs. (7.6 .12 a) and (7.6 .12 b), the following are obtained: 1 V p dðV p l M1 Þ dt ¼ k p 1 À xÞ½M p0 l p0 ð7:6 :13 aÞ 1 V p dðV p l M2 Þ dt ¼ 2fk p 1 À xÞ½M p0 þ k p *l M1 gl p1 ð7:6 :13 bÞ We ... be 38:55 Â 10 11 mL=ghr, K p t is 4:28 Â 10 11 mL=g hr, and K t is 29:98 Â 10 11 mL=ghr. 5. The absorption rate constants K 11 , K 12 , K 33 , and K 34 for homopoly...

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... Wt% 2.800 0.0 4. 014 15 .2 5.065 90.7 2.865 0.005 4.070 18 .1 5 .11 3 92.2 2.929 0.020 4 .12 6 21. 5 5 .16 1 93.7 2.992 0.052 4 .18 2 25.2 5.209 94.8 3.056 0 .10 5 4.237 29.3 5.256 95.8 3 .11 9 0 .18 5 4.292 33.7 ... 8.02 53.0 2 .19 3.82 6.37 7. 41 66.4 1. 74 3 .12 5.58 6.88 90.0 1. 22 2.25 4.42 5.95 11 3.6 0.952 1. 80 3.73 5.35 14 3 .1 0.763 1. 48 3 .15 4.79 Source: Ref. 18 . Mea...

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... (9.3.23) with respect to n 1 and n 2 , in turn, gives the following: m 1 ¼ @G mixture @n 1 ¼ g 1 þ RT ln f 1 þ n 1 f 1 @f 1 @n 1 þ n 2 f 2 @f 2 @n 1 þ w 1 f 2 þ w 1 n 1 @f 2 @n 1  ð9:3:24Þ m 2 ¼ @G mixture @n 2 ¼ ... À f Þð9:3 :1 where the symbol Q denotes product. As a consequence, O j 1 ¼ðn 0 À jmÞzðz 1 mÀ2 1 À f Þ m 1 ffiðn 0 À jmÞðz 1 m 1 1 À f Þ m 1...

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... 411 Copyright © 2003 Marcel Dekker, Inc. whereDtequalst 0 Àt.UsingEq. (10 .6.8),then, F ij ¼ 1 _ ggDt0 010 0 01 0 @ 1 A andwiththehelpofEq. (10 .6 .16 )or (10 .6 .17 ), C ij ¼ 10 0 _ ggDt10 0 01 0 @ 1 A 1 _ ggDt0 010 0 01 0 @ 1 A ¼ 1 _ ggDt0 _ ggDt1þð _ ggDtÞ 2 0 0 01 0 @ 1 A Thus,itisclearthatstrainhastakenplace. 10 .7THESTRESSCONSTITUTIVEEQUATION Letusrevisitthestre...

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... Kinetics of Oriented Polymers, Polym. Eng. Sci., 29, 11 47 11 56, 19 89. 47. Wissbrun, K. F., Rheology of Rod-Like Polymers in the Liquid Crystalline State, J. Rheol., 25, 619 –662, 19 81. 48. Jackson, ... crystals is 14 0 J=g. 11 .13 . Wide-angle x-ray scattering data for a semicrystalline PET fiber sample are as follows [ 61] : f (deg) IðfÞ 0 19 .6 10 20.6 20 18 .1 30 15 .0 40...

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