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Branched Polymers
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Block-Graft
Polymer PS block PI branch Final Polymer
Mwa
(. 10-3)		 I b Mwa
(. 10-3)		 I b Mnc
(. 10-3)		 Mwa
(. 10-3)		 I b I d % wt
PS e		 % wt
PI 1-4e		 g
PS-PII5 21.49 1.03 2.36 1.06 69.18 73.00 1.03 1.06 19.1 75.3 2.7
PS-PII10 61.00 72.58 1.05 1.19 23.0 70.7 1.5
PS-PII20 55.00 70.00 1.06 1.27 22.4 69.5 1.5
PS-PII10-PS 140.00 144.82 1.05 1.03 19.2 75.4 4.5
PS-PII20-PS 122.00 131.83 1.07 1.08 23.0 70.7 1.8
PS-PII40-PS 111.00 122.15 1.07 1.10 22.4 69.5 2.7

a: SEC-TALLS in THF at 35ºC
b: SEC in THF at 35ºC
c: Membrane osmometry in toluene at 40ºC
d: From Mw/Mn
e: 1H NMR in CDCl3 at 30ºC


Polymer PS block PI branch Final Polymer
Mwa
(. 10-3)		 I b Mwa
(. 10-3)		 I b Mnc
(. 10-3)		 Mwa
(. 10-3)		 I b I d % wt
PS e		 % wt
PI 1-4e		 g

PSS5-PII5

 26.82 1.12 3.31 1.10 70.3 77.3 1.07 1.1 20.5 72.8 3.0

PSS5-PII10

 66.0 80.0 1.19 1.21 21.4 71.9 1.3

PSS5-PII20

 78.3 97.9 1.25 1.25 24.8 69.2 1.4

PSS5-PII10-PSS5

 131.4 143.3 1.07 1.09 20.5 72.8 3.7

PSS5-PII20-PSS5

 121.8 136.4 1.07 1.12 21.4 71.9 5.0

a: SEC-TALLS in THF at 35ºC
b: SEC in THF at 35ºC
c: Membrane osmometry in toluene at 40ºC
d: From Mw/Mn
e: 1H NMR in CDCl3 at 30ºC


Polymer PS block PI branch PS-PI branch Final Polymer
Mwa
(. 10-3)		 I b Mwa
(. 10-3)		 I b Mwa
. 10-3)		 I b Mnc
(. 10-3)		 Mwa
(. 10-3)		 I b I d % wt
PS e		 % wt
PI 1-4e		 g
PS-PISI2 21.49 1.03 11.96 1.03 20.21 1.04 144.6 157.6 1.07 1.09 27.0 67.1 1.5
PS-PISI6 - 1270 1.06 - 33.6 60.8 3.2
PS-SI4-PS - 307.0 1.07 - 26.2 68 4.0

a: SEC-TALLS in THF at 35ºC
b: SEC in THF at 35ºC
c: Membrane osmometry in toluene at 40ºC
d: From Mw/Mn
e: 1H NMR in CDCl3 at 30ºC


Mictoarm Star Copolymers: PS(P2MP)5

Polymer Mn a
(PSbranch)
. 10-3		 Mn b
(P2MPbranch)
. 10-3		 Mn a
(tot)
. 10-3		 Mw c
(tot)
. 10-3		 Ib
tot		 %
(wt)
PSd		 %
(wt)
PSe		 g
PS(P2MP)5-1 54.0
(Ib=1.02)		 6.4
(I=1.09)		 86.7 91.1 1.04 62.3 58.7 1
PS(P2MP)5-2 54.0
(Ib=1.02)		 9.9
(I=1.03)		 103 109 1.04 52.4 49.3 4
PS(P2MP)5-3 195
(Ib=1.07)		 3.4
(I=1.25)		 213 224 1.05 91.5 93.5 5

a: MO in toluene at 35ºC.
b: SEC in THF at 40ºC.
c: LALLS in THF at 25ºC.
d: 
e: 1H-NMR in CDCl3.

bookMavroudis A, Avgeropoulos A, Hadjichristidis N, Thomas EL, Lohse DJ Chemistry of Materials
Manuscript in preparation



Linear And Star Copolymers: (PS-b-P2MP), PS(P2MP)2, PS(P2MP)3, PB(P2MP)2 and PB(P2MP)3

Polymer Mn a
(PS branch)
. 10-3		 Mn
(P2MP branch)
. 10-3		 Mn star a
. 10-3		 Mw star b
. 10-3		 I c = Mw/Mn g
(PS-b-P2MP) 93.3 - 118.1 129.9 1.04 7
PS(P2MP)2 93.3 5.5c 104 109.5 1.03 9
PS(P2MP)3 93.3 3.3c 102.1 108.2 1.05 7
(PS-b-P2MP) 72.8 - 110 115,7 1.03 10
PS(P2MP)2 72.8 14.5c 102 112.2 1.04 9
PS(P2MP)3 72.8 10.1c 101.3 110 1.03 8
(PS-b-P2MP) 45.8 - 83.9 88.6 1.08 10
PS(P2MP)2 45.8 25.9a 93.6 101.1 1.08 2

a: Membrane osmometry in toluene at 35ºC
b: LALLS in THF at 25ºC
c: SEC in THF at 40ºC
d: dn/dc in THF at 25ºC
131415

bookMavroudis A, Avgeropoulos A, Hadjichristidis N, Thomas EL, Lohse DJ Chemistry of Materials 2003, 15 (10), 1976
Synthesis and morphological behavior of model linear and miktoarm star copolymers of 2-methyl-1,3-pentadiene and styrene


Polymer Mn . 10-3 I Quantity (g) Mn . 10-3 I Quantity (g)
PSNH2 9.0 1.04 11.34
PSNH2 7.9 1.05 18
PSNH2 8.4 1.06 4.6
PSNH2 10.0 1.04 8.1
PSNH2 25.1 1.03 12
PSNH2 31.4 1.03 13.7
PSNH2 7.5 1.05 3.3
NH2PSPI 66.0 1.01 1.5 120.0 1.04 13
NH2PSPI 11.5 1.08 1.1 27.0 1.07 11
1617


Polymer Mn . 10-3 I Quantity (g) Mn . 10-3
2ndblock		 I Quantity (g)
PSNH2 8.90 1.03 1
+DVB1:1 0.53
+DVB2:1 44000 1.06 3
+DVB6:1 93600 1.06 5.1
PSNH2 29.3 1.02 1
+DVB2:1 140.0 1.06 4.4
+DVB4:1 222.0 1.07 5.9
PSNH2 28.3 1.01 1
+DVB6:1 292.0 1.08 7.6
PSNH2 14.3 1.03 1
+DVB2:1 62.6 1.06 2.5
+DVB10:1 138.1 1.1 12


Polymer Mn .10-3 I Quantity (g)
PBLG 14.0 1.10 4.1
PBLG 70.0 1.16 1.0
PZLL 14.0 1.16 23
PZLL 25.0 1.10 1.3
PZLL 32.4 1.07 0.8
PZLL 103.0 1.12 4.6
PZLL 108.0 1.14 4.2
PBLG: poly-c-benzyl-L-Glutamate
PZLL: poly-ε-carbobenzyloxy-L-Lysine

bookAliferis T, Iatrou H, Hadjichristidis N Biomacromolecules 2004, 5 (5), 1653
Living Polypeptides

bookPapadopoulos P, Floudas G, Schnell I, Klok H-A, Aliferis T, Iatrou H, Hadjichristidis N J. Chem. Phys. 2005, 122, 224906
"Glass transition" in peptides: Temperature and pressure effects


Polymer Mn*10-3 I Mn*10-3
2nd block		 I Quantity (g)
PBLG15-GLY1 25.3 1.08 1.05 1.12 0.7
PBLG15-GLY2 29.8 1.10 2.5 1.12 0.7
PBLG15-GLY3 27.5 1.11 3.45 -
PBLG15-GLY5 22.4 1.14 4.8 0.7
PBLG15-GLY8 22.8 1.11 7.6 0.6
PBLG15-GLY15 18.5 1.13 11.5 -
PBLG15-LEU6 29.5 1.10 7.1 0.8
PBLG15-LEU12 27.6 1.08 13.3 0.9
PBLG15-LEU20 28.5 1.08 22.8 1.5
PBLG10-PZLL3-LEU8 0.6
GLY: polyGlycine      LEU: poly-L-Leucine

bookAliferis T, Iatrou H, Hadjichristidis N Biomacromolecules 2004, 5 (5), 1653
Living Polypeptides

bookPapadopoulos P, Floudas G, Schnell I, Aliferis T, Iatrou H, Hadjichristidis N Biomacromolecules 2005, 6, 2352
Nanodomain-Induced Chain Folding in Poly(Á-benzyl-L-glutamate)- b-polyglycine Diblock Copolymers


Polymer Mn * 10-3 I Mn * 10-3
2nd block		 Quantity (g)
PBLG15-TYR3 30.3 1.09 6.1 0.6
PBLG15-TYR5 17.6 1.12 5.9 0.6
PBLG25-ALA2.5 18.5 1.06 1.8 3.0
PBLG22.5-ALA5 17.9 1.07 4.3 3.5
PBLG22.5-ALA9 18.8 1.07 8.1 4.0
PBLG22.5-ALA18 18.5 1.08 16.0 5.0
TYR: poly-o-benzyl-L-Tyrosine   ALA: poly-L-Alanine


Polymer Mn * 10-3 I Quantity (g) Mn total * 10-3 I Quantity (g)
PZLL-PBLG 28.7 1.08 0.6 40.0 1.07 1.6
PZLL45-PBLG35  29.2 1.05 1.0 44.0 1.03 1.3
PZLL25-PBLG45 20.4 1.05 1.0 40.3 1.07 4.5
PBLG18-PZLL50 12.9 1.04 0.5 82.3 1.06 0.9
PBLG30-PZLL18 26.3 1.03 0.7 52.6 1.01 0.8
PBLG24-PZLL30 22.9 1.07 0.5


Polymer Mn * 10-3 I Mn * 10-3
2nd block		 I Mn * 10-3 I
(PBLG-PZLL)3 19.1 1.01 26.1 1.04 76.9 1.09
(PBLG-PZLL)3 35.5 1.01 58.8 1.08 178.5 1.10
(PBLG-PZLL)3 39.5 1.02 62.1 1.03 176.0 1.06
(PBLG)3 27.1 1.04 79.6 1.05
(PZLL)3 28.3 1.03 83.6 1.06

bookAliferis T, Iatrou H, Hadjichristidis N Journal of Polymer Science Part A: Polym. Chem. 2005 43 (19): 4670
Well-defined linear multiblock and branched polypeptides by linking chemistry


Polymer Mn*10-3 I Quantity (g)
(PBLG)4 39.0 1.20 1.1
(PZLL)4 43.0 1.26 3.0
(PBLG22-BocLys6.5)4 Unfractionated
(PBLG22-BocLys12)4
(PBLG22-BocLys18)4
BocLys: poly-ε-Boc-L-Lysin



Stars Of PHIC

Polymer I Mn . 10-3 Quantity (g)
(PHIC)3 1.3 70.1 2.5
(PHIC)3 1.32 103 2.5
(PHIC)3 1.17 155 1
(PHIC)3 1.8 70 0.4
(PHIC)3 1.6 ~90 1.5
(PHIC)3 1.42 ~100 1.8
PHIC-DVB 1.41 ~25 1.8
PHIC-DVB 1.19 ~30 2



Molecular Characteristics Of H And π Copolymers

Polymer

Mw . 10-3

Mn . 10-3

I

% wt PS

Mn PS
arm

Mn PI
arm

Mn PI
conn

Quantity (g)

HSIS-1

174

171

1.08

42

20.3

-

102

0.6

GD-1

147

133

1.09

24

19.1

37.2

33.3

0.6



3-μ SIM Star Terpolymers

Polymer Mw (PS)a .
10-3		 Mw (PI)a
. 10-3		 Mn star .10-3
(MO)		 Mw stara
. 10-3		 I _b PS/PI/PMMA %wt c Quantity (g)
SIM-72/77/218 72 77 367 1.10 19.6/20.9/59.5 1.2
SIM-72/77/186 72 77 335 1.11 21.5/23/55.5 0.9
SIM-72/77/144 72 77 293 1.07 24.6/26.3/49.1 0.2
SIM-72/77/109 72 77 258 1.12 28.8/34.1/37.1 0.3
SIM-92/60/94 92 60 247 1.12 37.8/28.1/34.1 -
SIM-57/85/49 57 85 191 1.06 29.8/44.5/25.6 -
SIM-1 18 7.5 77 83 1.06 24/8/68 0.5
SIM-2 18 7.5 172 201 1.12 9/3/88 0.35

a : LALLS in THF at 25ºC
b : SEC in THF at 30ºC
c : 1H NMR in CDCl3
d : UV/SEC at 260nm in THF at 30ºC

bookSioula S, Tselikas Y, Hadjichristidis N Macromolecules 1997 30 (5), 1518

book
Sioula S, Hadjichristidis N, Thomas EL Macromolecules 1998 31 (16), 5272



4-Arm Stars PtBMA

Polymer Mn . 10-3
(MO)		 Mn star . 10-3
 (MO)		 Mw / Mn Quantity (g)
4-PtBMA -1 43 162 1.09 1.2

4-Arm Stars PMMA

Polymer Mn . 10-3
(MO)		 Mn star . 10-3
 (MO)		 Mw / Mn Quantity (g)
4-PMMA -1 22 90 1.08 0.23
4-PMMA-2 36 (SEC) 9.4 (unfract)

bookPitsikalis M, Sioula S, Pispas S, Hadjichristidis N, Cook DC, Li JB, Mays JW Journal of Polymer Science. Part A: Polym. Chem. 1999, 37 (23): 4337-4350




Star Polymers

Polymer Mn PS . 10-3 Mn PEO . 10-3 % PEO Quantity (g)
PS(PEO)3 - 1 5 25 93 1
PS(PEO)3 - 2 5 17 90 0.3
Polymer Mn PI . 10-3 Mn PEO . 10-3 % PEO Quantity (g)
PI(PEO)3 6 12 85 0.2



Polymer Mn . 10-3 % PI % P2VP % PEO Quantity (g)
PI-P2VP-PEO 96 40 29 31 2.8




  • Ekizoglou N, Hadjichristidis N Journal of Polymer Science, Part A: Polym. Chem. 2001, 39 (8), 1198
  • Ekizoglou N, Hadjichristidis N Journal of Polymer Science, Part A: Polym. Chem. 2002, 40 (13), 2166

Polymer Mn . 10-3 Quantity (g)
1NPB-2PS 140 1
2NPB-PS 150 2
3NPB-PS 150 3
3NPB-PS 70 1.5
3NPB-PS 26 3
1NPB-PS 26 6
1NPB-PS 70 3
1NPB-PS 67 4
1NPB-PS 150 6
1NPB-PS 38 5
1NPS 190 5
1NPS 110 6
1NPS 30 3
1NPS 53 5

  • Sakellariou G, Pispas S, Hadjichristidis N Macromolecular Chemistry and Physics 2003, 204 (1): 146

Polymer Mn . 10-3 Quantity (g)
1ZwPS 70 1
1ZwPS 150 3
1ZwPS 30 3
1ZwPB-3PS 210 2
3ZwPB-PS 70 2
3ZwPB-PS 26 2
3ZwPB-PS 150 2
1ZwPB-PS 80 3
1ZwPB-PS 38 2
1ZwPB-PS 68 2
1ZwPB-PS 26 2
1ZwPB-PS 150 3
1ZwPB-2PS 140 1
2ZwPB-PS 70 1
2ZwPB-PS 26 1
2ZwPB-PS 150 2

  • Advincula R, Zhou QG, Park M, Wang SG, Mays J, Sakellariou G, Pispas S, Hadjichristidis N Langmuir 2002, 18 (22): 8672


(AnBn)

Polymer Mn PS arm . 10-3 Mn PI (or PBd) arm . 10-3 % PS (w/w) Quantity (g)
PS-PI 19.0 15.0 56 3
(PS)2(PI)2 19.0 15.0 57 3
(PS)4(PI)4 19.0 15.0 56 3
(PS)6(PI)6 19.0 15.0 55 3
(PS)12(PI)12 19.0 15.0 56 3



  • Zhu YQ, Gido SP, Moshakou M, Iatrou H, Hadjichristidis N, Park S, Chang T Macromolecules 2003, 36 (15)


An

Polymer Mn PS arm . 10-3 Mn PI (or PBd) arm . 10-3 % PS (w/w) Quantity (g)
(PS)3 27.0 - 100 2
(PBd)8 - 15 - 2
(PBd)12 - 15 - 2
(PBd)32 - 15 - 2




Miktoarm stars containing PDMS

Polymer Mn PS
. 10-3		 Mn PDMS
. 10-3		 Mn PI
. 10-3		 Mn star
. 10-3		 Quantity (g)
(PS)2(PDMS) 15.9 16.1 - 47.7 1.0
(PS)3(PDMS) 5.1 15.2 - 31.1 0.8
(PS)(PI)(PDMS) 19.5 19.0 20.7 58.9 1.5




Linear Block Copolymers Containing PDMS

Polymer Mn PS
. 10-3 		Mn PI
. 10-3 		Mn PDMS
. 10-3 		Mn P2VP
. 10-3 		Mn PtBMA
. 10-3 		Quantity (g)
PS-PI-PDMS 190 190 80 - - 10.0
PS-PI-PDMS 30 25 22 - - 0.6
PS-PI-PDMS-P2VP 30 25 22 20 - 6.0
PDMS-PtBMA - - 55 - 8 8.0
PS-PDMS-PS 34 - 30 - - 5.0





Miktoarm Star Copolymers Of The (PS)n(PI)n Type

Polymer Mn PS . 10-3 Mn PI . 10-3 Mn tot . 10-3 Quantity (g)
PS-PI 19 14.5 33.5 3
(PS)2(PI)2 19 14.5 66.0 3
(PS)4(PI)4 19 14.5 132 3
(PS)6(PI)6 19 14.5 200 3
(PS)16(PI)16 19 14.5 500 3



Polymer Mw . 10-3 Quantity (g)

PMMA-PBd-PMMA 15-30-15 4.85
PMMA-PS-PBd-PS-PMMA 7.5-7.5-70-7.5-7.5 4.24
PMMA-PBd-PMMA 20-60-20 3.4
PS-PBd-PI-PMMA 50-50-50-50 4.55
PMMA-PBd-PMMA 15-70-15 4.85
PBd-PMMA 135-12 2.8
PS-PBd 90-10 0.9
PMMA-PBd-PMMA 15-70-15 3.5
PS-PBd-PS-PMMA 15-62-15-8 2.92
PBd-PMMA 80-20 2.87
PS-PBd-PMMA 20-60-20 2.8
PBd-PMMA 70-30 5.93
PS-PBd-PMMA 15-80-15 3.9
PS-PBd-PMMA 15-65-20 2.1




ABn Stars

Polymer Mn PS . 10-3 Mn PI . 10-3 I Quantity (g)


PS-PI 88 - 1.03 5.4
PS-(PI)2 88 26 1.08 6.0
PS-(PI)3 88 39.7 1.07 0.6
PS-(PI)5 92 15.5 1.1 1.7
PS-(PI)7 92 11.3 1.08 1.7
PS-(PI)11 90 7.5 1.14 1.0
PS-(PI)17 93 4.3 1.2 2.6


  • Doxastakis M, Kitsiou M, Fytas G, Theodorou DN, Hadjichristidis N, Meier G, Frick B Journal of Chemical Physics 2000, 112 (19): 8687


Tapered (T), Inverse tapered (IT), Random (R) Copolymers

Polymer Mn . 10-3
total a		 Mn . 10-3
1stblock b		 Mn . 10-3
2ndblock c		 Mn . 10-3
3rdblock		 I % wt PS total Quantity (g)
SI-1 16.7 8.0 8.7 - 1.03 49.8 1.24
SI-2 29.6 12.4 17.2 - 1.04 50.9 6.12
TBC-1 23.1 - - - 1.03 51.9 4.42
TMB-1 22.8 7.8 5.5 9.5 1.02 56.8 5.1
ITMB-1 18.5 8.6 2.0 7.9 1.02 50.8 6.66
ITMB-2 22.8 7.8 5.2 9.8 1.03 51.4 5.87
ITMB-3 26.4 8.5 8.7 9.2 1.03 51.8 9.2
RC-1 24.3 - - - 1.03 53.6
RMB-1 25.0 9.7 5.6 9.7 1.03 52.0 7.75

a: Membrane osmometry in toluene at 35ºC
b: SEC in THF at 30ºC
c: 1H-NMR in CDCl3

  • Hodrokoukes P, Floudas G, Pispas S, Hadjichristidis N Macromolecules 2001, 34 (3): 650
  • Hodrokoukes P, Pispas S, Hadjichristidis N Macromolecules, 2002, 35 (3): 834

Polymer Mw . 10-3 I Quantity (g)
PS-g-PI
(90/10)		 328 1,08 3
PS-g-PI
(95/5)		 200 1.07 1
PS-g-PI
(70/30)		 330 1.12 3
PCMS 7K PI 5K (140/5) 750 1.17 1.5
PCMS 7K PI 5K (140/5) 1150 1.21 1.5
PCMS 7K PI 10K (200/10) 1.760 1.17 3.5
PCMS 5K PI 10K (70/10) 640 1.12 3.7
PCMS 5K PI 5K (70/5) 360 1.12 3.5

Tsoukatos



Star Polymers P(S-b-I)6C60

Sample Mn.10-3
(PS) a		 Mw/Mn
(PS) a		 Mn .10-3(PS-PI) a Mw/Mn
(PS-PI)a 		Mn.10-3
(total) a		 Mn .10-3
(total) b		 % PS c Mw/Mn
totala		 Quantity (g)
6FIS
5/70		 3.3 1.05 4.9 1.04 28.3 - 71 1.12 2.5
6FIS
10/70		 6.1 1.03 9.3 1.04 38.6 45.8 68 107 6.0
6FIS
15/70		 10.5 1.05 15.5 1.05 74 81.6 70 1.08 7.0

a : SEC in THF
b : MO in toluene at 37ºC
c : 1H NMR in CDCl3




Molecular Characteristics Of Miktoarm Star Copolymers Of AB3

Polymer Mna
.10-3		 Mwc
.10-3		 I d % wt PSe (1H NMR) % wt PSc (UV/SEC) % wt PS (theor) Quantity (g)
PS-8K 7.7 - 1.04 - - - 0.24
PS-16.5K 16.3b 17.3 1.03 - - - 0.4
PI-1.5K 1.6 - 1.05 - - -  
PI-2K 1.9 - 1.06 - - -  
PI-6K 6.5 - 1.04 - - -  
(8K)(1.5K)3 11.5 12.2 1.04 70.4 68 67 1.92
(8K)(6K)3 24.0 25.1 1.04 34.0 31 33 3.8
(16.5K)(2K)3 22.0 22.9 1.04 71.2 73 74 7.6

a: Osmometry in toluene at 50ºC
b: Membrane osmometry in toluene at 35ºC
c: LALLS in THF at 25ºC
d: SEC in THF at 30ºC
e: in CDCl3


  • Sotiriou K, Nannou A, Velis G, Pispas S Macromolecules 2002, 35 (10): 4106


Molecular Characteristics Of Miktoarm Star Copolymers With 3 Branches (A2B)

Polymer Mn
PS . 10-3		 Mn
PBd .10-3		 Mn
star . 10-3		 Mw
star . 10-3		 I
Mw/Mn 		%w/w
PBd
(from Mn)		 %w/w
PBd
(NMR)		 Quantity (g)
(PS)2PB -1 13.0 22.0 44.4 47.8 1,07 46 48 4,1
PS(PB)2 -2 21.7 9.5 34.7 41.1 1,18 47 50 10
PS(PI)2 -3 21.7 15.9 50.3 53.4 1,06 59 62 0,29
(PS)2PI -4 25.9 15.9 65.0 65.5 1,04 24 26 1,1
(PS)2PB -5 23.7 14.8 57.0 62.1 1,09 24 25 5,0
PS(PI)2 -6 7.0a 8.0a 23,7 25,5 1,08 68 68 0,4
(PS)2PI -7 20,8 33,8 70,4 75,3 1,07 45 46 -
PS(PI)2 -8 79,1 34,0 146 147 1,05 46 45 3,8
PS(PI)2 -9 45,0 25,4 97,3 105 1,08 53 52 -
(PS)2PI -10 362 42,0 110 114 1,04 37 38 4,7

a: Membrane osmometry



Molecular Characteristics Of ABC Stars

Polymer Mn
PS . 10-3		 Mn
PI . 10-3		 Mn
PBd . 10-3		 Mn
star . 10-3		 Mw
star . 10-3		 I
Mw/Mn		 %w/w
PS
(N.M.R)		 %w/w
PI
(N.M.R)		 %w/w
PBd
(N.M.R)		 Quantity
(g)
ABC 1 20,7 15,6 12,2 45,4 46,4 1,04 42 32 26 6.5
ABC 2 7.9α  8,2α  7.7α  23,8 24,7 1,03 33 35 32 4

a : Membrane osmometry



A2B2

Polymer Mn
PS . 10-3		 Mn
PBd . 10-3		 Mw
PBd . 10-3		 Mn
star . 10-3		 Mw
star . 10-3		 I
Mw/Mn		 %w/w
PS
from Mn		 %w/w
PBd
from Mn		 %w/w
PBd
(N.M.R)		 Quantity
(g)
Α2Β2 12,2α 29,3 30,8 84,0 89,8 1,07 29 71 72 1,7




Star Quarterpolymer ABCD (PS)(PBd)(PI)(PMeS)

Polymer M.W
PS a		 M.W
PBd		 M.W
PI		 M.W
PMeS		 I
Mw/Mn		 M.W
star		 %
w/w
PS
N.M.R		 %
w/w
PBd
N.M.R		 %
w/w
PI
N.M.R		 Quantity
(g)
ABCD 16.7 16.5 15.4 16.7 1,06 65.5 25 23 27 7

a: LALLS



Centipedes

Polymer Mn PS arm
. 10-4		 Mn PI con
. 10-4		 Mw/ Mn
Graft		 %PS(w/w)
from Mn		 %w/w PS
(NMR)		 Quantity
g)
G 25-3 3.44 2.74 1.3 71 71 0.6
G 60-25 2.88 6.18 1.29 48 49 0.5
G 70-15 1.35 7.27 1.3 27 28 0.7
G 90-7 0.67 9.16 1.32 13 14 0.7


  • Nakamura Y, Wan Y, Mays JW, Iatrou H, Hadjichristidis N Macromolecules 2000, 33 (22): 8323
  • Nakamura Y, Wan YN, Mays JW, Iatrou H, Hadjichristidis N Macromolecules 2001, 34 (6): 2018


PS Graft Homopolymers

Polymer Mn PS arm
. 10-4		 Mn PS con
. 10-4		 Mw/Mn Graft Quantity (g)
G 15-35 3.44 1.57 1.19 0.3
G 40-25 2.88 4.12 1.2 0.8
G 60-15 1.35 5.70 1.19 0.9



Second-Generation Dendritic Polymers Of Isoprene (I) And Styrene (S)

Polymer Mna
branch
(G-2)
. 10-3		 Mna
branch
(G-2)
. 10-3		 Mne
branch
(G-1)
. 10-3		 Mnd
Dendr.
branch
. 10-3		 Mnb
dendr.
. 10-3		 Mwc
dendr.
. 10-3		 (I)a
dendr		 % wt
PS
1H NMR		 % wt
PS
theor.		 Quantity
(g)
(S2I)3 17.1 17.1 5.5 119.1 115.9 124 1.05 79 77 1
(SI'I)3 5.2 17.5 30.6 159.9 157.7 166.7 1.07 31 30 1
(I'I''I)3 5.5 23.5 12.1 123.3 115.8 121.4 1.06 - - 1
(I2'I)4 18.8 18.8 20.2 231.2 233.7 245 1.07 - - 1

a: SEC in THF at 25ºC.
b: Membrane osmometry in toluene at 37ºC.
c: Static Light Scattering in THF at 25ºC.
d: Calculated from the molecular weight of the branches
e: g of monomer/ mol of the macromol. initiator

  • Chalari I, Hadjichristidis N Journal of Polymer Science, Part A: Polym. Chem. 2002, 40 (10): 1519


Stars (PBd)(PS)(PI)

Sample Mn (MO) . 10-3 Quantity (g)
Mikto-BSI -1 122.0 1.1
Mikto-BSI -2 133.9 1.59
Mikto-BSI -3 291.6 0.36




Miktoarm Star Copolymers A3B

Sample Mn stara .10-3 Mw starb .10-3 Mn PSa .10-3 Mn PIa .10-3 Mw/Mnc %wt PSc %wt PSd 1HNMR Quantity (g)
4IS40 104 108.3 59.3 14.2 1.04 58 60 1.4
4IS35 92.3 97.3 59.3 11.7 1.03 64 65 4.7
4IS13 199 204 180 7.6e 1.03 88 88 0.85


a : Membrane Osmometry in toluene at 34ºC
b : LALLS in THF at 25ºC
c : SEC in THF at 30ºC
d : CDCl3
e : VPO in toluene at 50ºC

  • Sioula S, Tselikas Y, Hadjichristidis N Macromolecular Symposia 1997, 117: 167


Inversed Star-Block Copolymers Of PS, PI

Sample SB 1 SB 2 SB 3

a : Membrane Osmometry in toluene at 34ºC
b : LALLS in THF at 25ºC
c : SEC in THF at 30ºC
d : dn/dc in THF at 25ºC
Mn PSa .10-3 82.0 36.1 20.0
Mn PS-PIa .10-3 101 52.6 37.3
Mw PS-PIa .10-3 b 104 54.5 38.4
Mw/Mn PS-PIc 1.04 1.04 1.04
% wt PS UV-SECc 80 65 49
1H NMR 80 68 48
Mn PIa .10-3 73.0 32.5 17.9
Mn PS-PIa .10-3 93.1 50.0 37.4
Mw PS-PIa .10-3 96.4 52.2 38.7
Mw/Mn PI-PSc 1.03 1.04 1.03
% wt PS UV-SECc 20 35 50
1H NMR 21 37 51
Mn totala .10-3 378 212 148
Mwtotala .10-3 395 220 152
Mw/Mn totalc 1.05 1.04 1.03
% wt PS UV-SECc 48 50 49
1H NMR 50 49 49
dn/dcd 53 51 51
Quantity (g) 0.5 7.0 7.1

  • Chrissopoulou K, Tselikas Y, Anastasiadis SH, Fytas G, Semenov AN, Fleischer G, Hadjichristidis N, Thomas EL Macromolecules 1999, 32 (15): 5115
Last modified: 13/03/2008