Recent content by triplej

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    Glass transition temperature

    I'll consider these three things you've mentioned. Size of side groups: PE has very small side groups in the H atoms, while PEG has no side groups on the O. This would imply that PE might have slightly more hindered rotation, meaning a higher glass transition than PEG, however this is not...
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    Electronegativity of halogens

    Thank you both, I get it now. Should have remembered the stability vs. electronegativity thing.
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    Glass transition temperature

    Does that mean C-O bonds don't rotate as freely as C-C bonds, maybe an inequality in the electronic character of the C and O atoms that causes stiffness?
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    Glass transition temperature

    Can anyone tell me why poly(ethelyne glycol) has a higher Tg than polyethylene?
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    Electronegativity of halogens

    Can anyone explain concisely why Trifluoroacetic Acid is more acidic than Trichloroacetic Acid, but HCl is more acidic than HF?
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    End to end distance of various copolymers

    This is a question out of Polymer Chemistry by Hiemenz and Lodge. (not homework, I'm just curious) For freely jointed copolymers with nA steps of length lA and nB steps of length lB find <h2> for strictly alternating, random and diblock architectures. Are the answers the same or different...
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