mate 454 spin odal decomposition

7/24/2019 Mate 454 Spin Odal Decomposition

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Chapter 10Spinodal Decomposition in Binary Polymer Blends

Mat E 454 | Apr i l 22 n d , 2014

MOHAMMED A!A"E#

ED$A#D B#%&S

XIAOLIN BI


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O'tline Introduction

Theory:(deal Sol'tion Model#e)'lar Sol'tion Model*lory+H'))ins -eory

-e .a-n+Hilliard Model*o/ E'ation

Binary Systems Exhibiting SD:PMMA PMSA&

PMMASA&PEHPEBPMMAPA(ncommens'rate *ilms.omposition+dependent -eat cond'cti3ity syste

Concusion


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(ntrod'ction 1 Lo!er Boundary:

t-ermally ind'cedmi/in)

"##er Boundary:t-ermally ind'ceddemi/in)

$aximum6 Hi)-est

7or mi/in) 8%.S9 $inimum6 o:est

7or demi/in) 8.S9

Descri;in)typicalpolymer;lendsp-asedia)rams

1 Simmons, D< S< 8200=9< Phase and conformational behavior of lcst-driven stimuli responsive polymers< 8Doctoral dissertation, %ni3ersity o7


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(ntrod'ction 1 Other Beha%iors:

.S is t-e mostcommon ;'t


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(ntrod'ctionTo be immiscibe& i'e' s#inodadecom#osed:

Criteria ():

2 or more c-emically di?erent polymers in in a

s-ared 3ol'me Criteria (*:

P-ase separation ;et:een t-e polymers,macro+si@ed re)ions o7 similar+c-emical

polymer, or sin)le polymer ric- re)ionsdispersed t-ro')-o't -omo)eno's mi/t're


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-e (deal Sol'tion Model 2 Obeys +aout,s:

Entha#y and entro#y o-mixing:

2 M'rat, S< 820109< Physical chemistry of polymers:Thermodynamics of solutions of high polymers< 8Doctoral

1 8sol3ent9 :-ile 2 8sol'te9< ais t-e acti3ity o7 t-ecomponent, is t-e mole 7raction, Pi is t-e 3apor

press're o7 t-e sol3ent ;e7ore mi/in), and P7 is t-e3apor press're o7 t-e sol3ent a7ter mi/in)


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-e (deal Sol'tion Model 2 .hy does it -ai to describe

#oymer bends/A sol'tion :it- a 3ery small sol'te:ei)-t 7raction as :ell as a smallmole 7raction 89 can -ardly de3iate7rom t-e ideality

mate 454 spin odal decomposition

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