作者ll1122 (ll1122)
看板NTU-Exam
標題[試題] 100上 謝國煌 高分子化學 期末考
時間Thu Jan 12 19:18:05 2012
課程名稱︰高分子化學
課程性質︰選修
課程教師︰謝國煌
開課學院:工學院
開課系所︰化工系
考試日期(年月日)︰2012.1.12
考試時限(分鐘):120分鐘
是否需發放獎勵金:是
(如未明確表示,則不予發放)
試題 :
1.Describe the reaction mechanism of the ring-opening polymerization without
ring cleavage. (10%)
2.Describe the synthesis the Poly(ethylene oxide) by anionic catalyst(X+Y-
or M+OR-). (10%)
3.How to synthesis the Poly(tetramethylene oxide) from tetrahydrofuran in
the presence of Lewis acid (PF5) with the traces of water. (10%)
4.How to synthesis the Poly(vinyl alcohol) by side-group modification process.
(5%)
5.Describe four advantages for polymer-supported organic reactions. (10%)
6.If you have a photoresist reaction as
—(CH2-CH)n— —(CH2-CH)n—
丨 丨
/\ hν /\
∣O∣ ---→ ∣O∣
\/ –CO \/
丨 丨
O OH
丨
C==0
丨
H
How do you use this resist as a positive and as a a negative resist,
respectively. (15%)
7.Why can we use the following simple equation to represent the condensation
polymerization (5%)
O O
╱╲╱╲ + ╱╲╱╲ → ╱╲╱╲∥ ╱ ╲╱╲╱ + H20↗
COOH OH C
8.Describe the rate equation of polyesterification and express its conversion
_
(P) and degree of polymerization (DP). (10%)
9.Describe the propagation reactions of monomer M1 and M2 and derive the
equation for the relationship between the molar fraction ratio in the
polymer (f1/f2) and that in reaction mixture (F1/F2). (10%)
10.(a) Describe the reaction mechanism of anionic polymerization and its
characteristic during the reaction and final product. (5%)
(b) Derive the rate of polymerization to give the [M] as the function of
time t. (5%)
(c) Derive the average kinetic chain length (ν) and average degree of
_
polymerization (DP). (5%)
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