The structure of polyurethane formed by the copolymerization of a diol with a diisocyanate is to be drawn. Concept introduction: The polymers (repeating structural units) are derived from the simple and reactive molecules, called as monomers. Depending upon the mode of polymerization , polymerization mainly occurs by addition and condensation polymerization reactions. Copolymerization reactions are defined as the reactions of two different monomers forming a copolymer . Polyurethane is formed by the copolymerization of diol with diisocyanate. To determine: The structure of polyurethane formed by the copolymerization of a diol with a diisocyanate.
The structure of polyurethane formed by the copolymerization of a diol with a diisocyanate is to be drawn. Concept introduction: The polymers (repeating structural units) are derived from the simple and reactive molecules, called as monomers. Depending upon the mode of polymerization , polymerization mainly occurs by addition and condensation polymerization reactions. Copolymerization reactions are defined as the reactions of two different monomers forming a copolymer . Polyurethane is formed by the copolymerization of diol with diisocyanate. To determine: The structure of polyurethane formed by the copolymerization of a diol with a diisocyanate.
Definition Definition Group of atoms that shape the chemical characteristics of a molecule. The behavior of a functional group is uniform in undergoing comparable chemical reactions, regardless of the other constituents of the molecule. Functional groups aid in the classification and anticipation of reactivity of organic molecules.
Chapter 22, Problem 167CP
Interpretation Introduction
Interpretation: The structure of polyurethane formed by the copolymerization of a diol with a diisocyanate is to be drawn.
Concept introduction: The polymers (repeating structural units) are derived from the simple and reactive molecules, called as monomers. Depending upon the mode of polymerization, polymerization mainly occurs by addition and condensation polymerization reactions. Copolymerization reactions are defined as the reactions of two different monomers forming a copolymer. Polyurethane is formed by the copolymerization of diol with diisocyanate.
To determine: The structure of polyurethane formed by the copolymerization of a diol with a diisocyanate.
How is the resonance structure formed to make the following reaction product. Please hand draw the arrows showing how the electrons move to the correct position. Do not use an AI answer. Please draw it yourself or don't bother.
Part II Calculate λ max of the following compounds using wood ward- Fiecer rules
a)
b)
c)
d)
e)
OH
OH
dissolved in dioxane
Br
Br
dissolved in methanol.
NH₂
OCH 3
OH
6. Match each of the lettered items in the column on
the left with the most appropriate numbered
item(s) in the column on the right. Some of the
numbered items may be used more than once
and some not at all.
a.
Z = 37
1.
b.
Mn
2.
C.
Pr
element in period 5 and group
14
element in period 5 and group
15
d. S
e. [Rn] 7s¹
f.
d block
metal
3. highest metallic character of all
the elements
4. paramagnetic with 5 unpaired
electrons
5. 4f36s2
6. isoelectronic with Ca²+ cation
7.
an alkaline metal
8. an f-block element