Heteroarm star polystyrene-block-poly(4-vinylpyridine): multiple morphologies in dilute solutions

Chia Hung Lin; Wen Chang Chen; Hsin Lung Chen

doi:10.1002/macp.200800378

Heteroarm star polystyrene-block-poly(4-vinylpyridine): multiple morphologies in dilute solutions

Chia Hung Lin, Wen Chang Chen^*, Hsin Lung Chen

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

11 Scopus citations

Abstract

Synthesis and solution morphologies of four new heteroarm star polystyrene-block-poly(4-vinylpyridine) were studied. As the water content increased, a morphological transformation of heteroarm PS₄-P4VP ₄ from spheres to cylinders, vesicles, and large compound vesicles was observed. The morphology of PS₄-P4VP₄ in the solvent mixture of DMF/water or 1,4-dioxane/ water was spherical, but changed to large compound micelles in THF/water. As the P4VP molar ratio decreased, the morphology changed from spherical mixed with cylindrical to vesicles, giant vesicles, and then to LCMs. The present study demonstrated the formation of multiple morphologies through manipulating solvent polarity and block ratio in dilute solution.

Original language	English
Pages (from-to)	2349-2358
Number of pages	10
Journal	Macromolecular Chemistry and Physics
Volume	209
Issue number	22
DOIs	https://doi.org/10.1002/macp.200800378
State	Published - 24 11 2008
Externally published	Yes

Keywords

Amphiphilic
Block copolymers
Dilute solution
Morphology
Selective solvents

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title = "Heteroarm star polystyrene-block-poly(4-vinylpyridine): multiple morphologies in dilute solutions",

abstract = "Synthesis and solution morphologies of four new heteroarm star polystyrene-block-poly(4-vinylpyridine) were studied. As the water content increased, a morphological transformation of heteroarm PS4-P4VP 4 from spheres to cylinders, vesicles, and large compound vesicles was observed. The morphology of PS4-P4VP4 in the solvent mixture of DMF/water or 1,4-dioxane/ water was spherical, but changed to large compound micelles in THF/water. As the P4VP molar ratio decreased, the morphology changed from spherical mixed with cylindrical to vesicles, giant vesicles, and then to LCMs. The present study demonstrated the formation of multiple morphologies through manipulating solvent polarity and block ratio in dilute solution.",

keywords = "Amphiphilic, Block copolymers, Dilute solution, Morphology, Selective solvents",

author = "Lin, {Chia Hung} and Chen, {Wen Chang} and Chen, {Hsin Lung}",

year = "2008",

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doi = "10.1002/macp.200800378",

language = "英语",

volume = "209",

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journal = "Macromolecular Chemistry and Physics",

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number = "22",

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TY - JOUR

T1 - Heteroarm star polystyrene-block-poly(4-vinylpyridine)

T2 - multiple morphologies in dilute solutions

AU - Lin, Chia Hung

AU - Chen, Wen Chang

AU - Chen, Hsin Lung

PY - 2008/11/24

Y1 - 2008/11/24

N2 - Synthesis and solution morphologies of four new heteroarm star polystyrene-block-poly(4-vinylpyridine) were studied. As the water content increased, a morphological transformation of heteroarm PS4-P4VP 4 from spheres to cylinders, vesicles, and large compound vesicles was observed. The morphology of PS4-P4VP4 in the solvent mixture of DMF/water or 1,4-dioxane/ water was spherical, but changed to large compound micelles in THF/water. As the P4VP molar ratio decreased, the morphology changed from spherical mixed with cylindrical to vesicles, giant vesicles, and then to LCMs. The present study demonstrated the formation of multiple morphologies through manipulating solvent polarity and block ratio in dilute solution.

AB - Synthesis and solution morphologies of four new heteroarm star polystyrene-block-poly(4-vinylpyridine) were studied. As the water content increased, a morphological transformation of heteroarm PS4-P4VP 4 from spheres to cylinders, vesicles, and large compound vesicles was observed. The morphology of PS4-P4VP4 in the solvent mixture of DMF/water or 1,4-dioxane/ water was spherical, but changed to large compound micelles in THF/water. As the P4VP molar ratio decreased, the morphology changed from spherical mixed with cylindrical to vesicles, giant vesicles, and then to LCMs. The present study demonstrated the formation of multiple morphologies through manipulating solvent polarity and block ratio in dilute solution.

KW - Amphiphilic

KW - Block copolymers

KW - Dilute solution

KW - Morphology

KW - Selective solvents

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DO - 10.1002/macp.200800378

M3 - 文章

AN - SCOPUS:56749183831

SN - 1022-1352

VL - 209

SP - 2349

EP - 2358

JO - Macromolecular Chemistry and Physics

JF - Macromolecular Chemistry and Physics

IS - 22

ER -

Heteroarm star polystyrene-block-poly(4-vinylpyridine): multiple morphologies in dilute solutions

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Keywords

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