Polymer Chemistry
Condensation Polymers PET Polyamides
* formed by the elimination of small molecules ltholtla.it when Bethanie -1,2 -
did A carboxyl group ,
-
COOH ,
+ amine ,NH , , form an amide bond
monomers bond together * benzene -
ha -
dicarboxylic acid * used a fibres in clothing
& require monomers to have 2 diff functional groups
.
* makes clothes crease resistant
diamine and dicarboxylic acid monomers
"°
Polyesters > carpets , shirts , sports clothing
n
ftp.i?--di-oHtnH0-lth-lth-0H nth N -
A -
NH , + n
% -
B -
C
"
'
OH
* reacting 2 diff . monomers , dint dicarboxylic acid
/ y, to
0 H
"° " É
"
/ fi o ith ch
of 1- In Hao
É ÉF
-
hydroxy carboxylic
- - - -
-
A
try
N HO - -
OH t n C -
B -
c "
¥
' ' A-
acid
-
-
-
☐ -
Ho OH
, , ^
0
e-
µ in Ho -
B.c
"yµ Nylon -6,6 oraiacyicniiiiiie repeat unit
poiuamiae
diaminohexanethexane-hb-dioicacidfo-A-o.ci
* 1,6
H
IF
-
'
I
Éf
-
B-
£0 É
H "
%
n
-0%4-+2^40
I
.CI?,-s/-N-lcth1o
e-
repeat unit -
D -
,
,
N Kkk
Pollster n N ( (th ) , N n ICHI
- -
-
t ,
-
,
-
-
,
' '
H Ho
'
ti
I H
Hydrolysis of polyamides
Addition Polymerisation Hydrolysis + degradable polymers * hydrolysis innotaa.aciaa.vn produces :
* addition polymers formed from alkene monomers * Condensation polymers degradable flavours
are dicarboxylic acid + ammonium salt 01 diamine
( C- C) * Degradable polymers can be hydrolysed by acids * hydrolysis
+ bases in hot aol.at/2a1ilNaOH/ produces :
4>
-
Condensation are now being used more than addition sodium salt of dicarboxylic acid + diamine
fÉ if
.
.
"
1
l"} →
reducing stress on waste management systems
N , , [ →
.
Acid base hydrolysis of nylon -6,6
'
Hi H ti ti Acid hydrolysis
fÉ
n base or PET
¥ ]_n
( ( th )
É N kHz )o
propene
- - -
polypropylene
-
-
.
f- E- ii. o.E.ci
"
base it
of
ni-na-ooc-ioo-na.tl
"
-
n
→
t n HO CHI -
- CH , -
OH acid → ntna-OOC-CCH.lu -
COO.NU/-tnHzN-1Cth1-Ntk
Photo degradable Polymers acid
* some condensation maybe photo degradable as I :O bonds NHO C C - -
-
OH + NHOOC -
-
COOH base → ntbNt-lltklo-N-tbtnHOOC-KH.li ,
-
COOH
within backbone otpolumerlunabsoib light energy 1- break
Condensation Polymers PET Polyamides
* formed by the elimination of small molecules ltholtla.it when Bethanie -1,2 -
did A carboxyl group ,
-
COOH ,
+ amine ,NH , , form an amide bond
monomers bond together * benzene -
ha -
dicarboxylic acid * used a fibres in clothing
& require monomers to have 2 diff functional groups
.
* makes clothes crease resistant
diamine and dicarboxylic acid monomers
"°
Polyesters > carpets , shirts , sports clothing
n
ftp.i?--di-oHtnH0-lth-lth-0H nth N -
A -
NH , + n
% -
B -
C
"
'
OH
* reacting 2 diff . monomers , dint dicarboxylic acid
/ y, to
0 H
"° " É
"
/ fi o ith ch
of 1- In Hao
É ÉF
-
hydroxy carboxylic
- - - -
-
A
try
N HO - -
OH t n C -
B -
c "
¥
' ' A-
acid
-
-
-
☐ -
Ho OH
, , ^
0
e-
µ in Ho -
B.c
"yµ Nylon -6,6 oraiacyicniiiiiie repeat unit
poiuamiae
diaminohexanethexane-hb-dioicacidfo-A-o.ci
* 1,6
H
IF
-
'
I
Éf
-
B-
£0 É
H "
%
n
-0%4-+2^40
I
.CI?,-s/-N-lcth1o
e-
repeat unit -
D -
,
,
N Kkk
Pollster n N ( (th ) , N n ICHI
- -
-
t ,
-
,
-
-
,
' '
H Ho
'
ti
I H
Hydrolysis of polyamides
Addition Polymerisation Hydrolysis + degradable polymers * hydrolysis innotaa.aciaa.vn produces :
* addition polymers formed from alkene monomers * Condensation polymers degradable flavours
are dicarboxylic acid + ammonium salt 01 diamine
( C- C) * Degradable polymers can be hydrolysed by acids * hydrolysis
+ bases in hot aol.at/2a1ilNaOH/ produces :
4>
-
Condensation are now being used more than addition sodium salt of dicarboxylic acid + diamine
fÉ if
.
.
"
1
l"} →
reducing stress on waste management systems
N , , [ →
.
Acid base hydrolysis of nylon -6,6
'
Hi H ti ti Acid hydrolysis
fÉ
n base or PET
¥ ]_n
( ( th )
É N kHz )o
propene
- - -
polypropylene
-
-
.
f- E- ii. o.E.ci
"
base it
of
ni-na-ooc-ioo-na.tl
"
-
n
→
t n HO CHI -
- CH , -
OH acid → ntna-OOC-CCH.lu -
COO.NU/-tnHzN-1Cth1-Ntk
Photo degradable Polymers acid
* some condensation maybe photo degradable as I :O bonds NHO C C - -
-
OH + NHOOC -
-
COOH base → ntbNt-lltklo-N-tbtnHOOC-KH.li ,
-
COOH
within backbone otpolumerlunabsoib light energy 1- break
