A new strictly alternating comblike amphiphilic polymer based on PEG. 1. Synthesis and associative behavior of a low molecular weight sample

C. Heitz; S. Pendharkar; R. K. Prud'Homme; J. Kohn

doi:10.1021/ma991158a

A new strictly alternating comblike amphiphilic polymer based on PEG. 1. Synthesis and associative behavior of a low molecular weight sample

C. Heitz, S. Pendharkar, R. K. Prud'Homme, J. Kohn

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Abstract

We describe the synthesis and associative behavior in water of a strictly alternating comblike amphiphilic polymer based on poly(ethylene glycol) (PEG). The polymer has a strictly alternating sequence of PEG blocks (M_w = 8000) of low polydispersity and hydrophobic 18 carbon-atom alkyl pendent chains. Three copolymers with M_w = 28 000, 68 000, and 113 000 were prepared. The associative behavior of the polymer of molecular weight 28 000 (on average about 3 PEG-CIS sequences per chain) in water was studied by static and dynamic light scattering, spectrofluorimetry, and viscosity measurements. The behavior resembles that of hydrophobically end capped (i.e., telechelic) PEO. Flowerlike micelles, each containing approximately 14 hydrophobes, are formed by the association of about four to five polymer chains.

Original language	English (US)
Pages (from-to)	6652-6657
Number of pages	6
Journal	Macromolecules
Volume	32
Issue number	20
DOIs	https://doi.org/10.1021/ma991158a
State	Published - Oct 5 1999

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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abstract = "We describe the synthesis and associative behavior in water of a strictly alternating comblike amphiphilic polymer based on poly(ethylene glycol) (PEG). The polymer has a strictly alternating sequence of PEG blocks (Mw = 8000) of low polydispersity and hydrophobic 18 carbon-atom alkyl pendent chains. Three copolymers with Mw = 28 000, 68 000, and 113 000 were prepared. The associative behavior of the polymer of molecular weight 28 000 (on average about 3 PEG-CIS sequences per chain) in water was studied by static and dynamic light scattering, spectrofluorimetry, and viscosity measurements. The behavior resembles that of hydrophobically end capped (i.e., telechelic) PEO. Flowerlike micelles, each containing approximately 14 hydrophobes, are formed by the association of about four to five polymer chains.",

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AU - Heitz, C.

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AU - Kohn, J.

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N2 - We describe the synthesis and associative behavior in water of a strictly alternating comblike amphiphilic polymer based on poly(ethylene glycol) (PEG). The polymer has a strictly alternating sequence of PEG blocks (Mw = 8000) of low polydispersity and hydrophobic 18 carbon-atom alkyl pendent chains. Three copolymers with Mw = 28 000, 68 000, and 113 000 were prepared. The associative behavior of the polymer of molecular weight 28 000 (on average about 3 PEG-CIS sequences per chain) in water was studied by static and dynamic light scattering, spectrofluorimetry, and viscosity measurements. The behavior resembles that of hydrophobically end capped (i.e., telechelic) PEO. Flowerlike micelles, each containing approximately 14 hydrophobes, are formed by the association of about four to five polymer chains.

AB - We describe the synthesis and associative behavior in water of a strictly alternating comblike amphiphilic polymer based on poly(ethylene glycol) (PEG). The polymer has a strictly alternating sequence of PEG blocks (Mw = 8000) of low polydispersity and hydrophobic 18 carbon-atom alkyl pendent chains. Three copolymers with Mw = 28 000, 68 000, and 113 000 were prepared. The associative behavior of the polymer of molecular weight 28 000 (on average about 3 PEG-CIS sequences per chain) in water was studied by static and dynamic light scattering, spectrofluorimetry, and viscosity measurements. The behavior resembles that of hydrophobically end capped (i.e., telechelic) PEO. Flowerlike micelles, each containing approximately 14 hydrophobes, are formed by the association of about four to five polymer chains.

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A new strictly alternating comblike amphiphilic polymer based on PEG. 1. Synthesis and associative behavior of a low molecular weight sample

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