ss_3 - Core 5.9 (a) 6 * 1g / mole 3 * 12 g / mole 42 g /...

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Core 5.9 (a) mer w M mole g mole g mole g . / 42 / 12 * 3 / 1 * 6 1381 / 42 / 000 , 58 mole g mole g M M DP mer w w (b) No. Not all molecules have this DP. Instead there is a distribution about this average which is controlled at the point of polymer synthesis. (c) The conformation will be same form of random coil.
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PB: n H H C C H H C C H H » » » » » » ¼ º « « « « « « ¬ ª 0 0 0 0 | | | | | | mole g M PBmer w / 54 1 * 6 12 * 4 . molesPBmer g molemer gPB 85 . 1 ) 54 1 )( 100 ( % of PB mer xlinked = (0.03)(1.85moles) = 0.0556 moles Two sulfur atoms are required to crosslink two monomer units together, so crosslinking 3% of the PB mer requires (0.0556 moles sulfur)(32.06 g/mole) = 1.78 g S A 3% crosslinked PB rubber would be easier to elastically deform than a 10% PB rubber.
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When two immiscible homopolymers are mixed, phase separation will occur. The problem is much like that of mixing oil and water except that the polymer viscosities are much higher than the water viscosity, so the time scale for phase separation of polymers
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ss_3 - Core 5.9 (a) 6 * 1g / mole 3 * 12 g / mole 42 g /...

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