Synthesis of well-defined second-generation dendritic polymers of isoprene (I) and styrene (S): (S2I)3, (SI′I)3, (I″I′I)3, and (I′2I)4

Ioanna Chalari; Nikos Hadjichristidis

doi:10.1002/pola.10233

Synthesis of well-defined second-generation dendritic polymers of isoprene (I) and styrene (S): (S₂I)₃, (SI′I)₃, (I″I′I)₃, and (I′₂I)₄

Ioanna Chalari, Nikos Hadjichristidis^*

^*Corresponding author for this work

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

92 Scopus citations

Abstract

The synthesis of second-generation (G-2) dendritic polymers of isoprene (I) and styrene (S) was achieved with anionic polymerization high-vacuum techniques and by performing the following steps: (1) selective reaction of a living chain with the chlorosilane group of 4-(chlorodimethylsilyl)styrene (a dual-functionality compound) to produce a macromonomer, (2) addition of a second living chain (same or different) to the double bond of the macromonomer, (3) polymerization of I with the anionic sites, and (4) reaction of the produced off-center living species with trichloromethyl silane or tetrachlorosilane (CH₃SiCl₃ or SiCl₄). The combined characterization results showed that the G-2 dendritic macromolecules synthesized-(S₂I)₃, (SI′I)₃, (I″I′I)₃, (I′I)₄ a high molecular and compositional homogeneity.

Original language	English (US)
Pages (from-to)	1519-1526
Number of pages	8
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	40
Issue number	10
DOIs	https://doi.org/10.1002/pola.10233
State	Published - May 15 2002
Externally published	Yes

Keywords

(I′I)
(I″I′ I)
(SI)
(SI′I)
Anionic polymerization
Hyperbranched second-generation dendritic polymers
Macromonomer 4-(chlorodimethylsilyl)styrene
Tetrachlorosilane
Trichloromethyl silane

ASJC Scopus subject areas

Polymers and Plastics
Organic Chemistry
Materials Chemistry

Access to Document

10.1002/pola.10233

Cite this

@article{c1e496b42bd54360837c7b0767751e71,

title = "Synthesis of well-defined second-generation dendritic polymers of isoprene (I) and styrene (S): (S2I)3, (SI′I)3, (I″I′I)3, and (I′2I)4",

abstract = "The synthesis of second-generation (G-2) dendritic polymers of isoprene (I) and styrene (S) was achieved with anionic polymerization high-vacuum techniques and by performing the following steps: (1) selective reaction of a living chain with the chlorosilane group of 4-(chlorodimethylsilyl)styrene (a dual-functionality compound) to produce a macromonomer, (2) addition of a second living chain (same or different) to the double bond of the macromonomer, (3) polymerization of I with the anionic sites, and (4) reaction of the produced off-center living species with trichloromethyl silane or tetrachlorosilane (CH3SiCl3 or SiCl4). The combined characterization results showed that the G-2 dendritic macromolecules synthesized-(S2I)3, (SI′I)3, (I″I′I)3, (I′I)4 a high molecular and compositional homogeneity.",

keywords = "(I′I), (I″I′ I), (SI), (SI′I), Anionic polymerization, Hyperbranched second-generation dendritic polymers, Macromonomer 4-(chlorodimethylsilyl)styrene, Tetrachlorosilane, Trichloromethyl silane",

author = "Ioanna Chalari and Nikos Hadjichristidis",

year = "2002",

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AU - Hadjichristidis, Nikos

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Y1 - 2002/5/15

N2 - The synthesis of second-generation (G-2) dendritic polymers of isoprene (I) and styrene (S) was achieved with anionic polymerization high-vacuum techniques and by performing the following steps: (1) selective reaction of a living chain with the chlorosilane group of 4-(chlorodimethylsilyl)styrene (a dual-functionality compound) to produce a macromonomer, (2) addition of a second living chain (same or different) to the double bond of the macromonomer, (3) polymerization of I with the anionic sites, and (4) reaction of the produced off-center living species with trichloromethyl silane or tetrachlorosilane (CH3SiCl3 or SiCl4). The combined characterization results showed that the G-2 dendritic macromolecules synthesized-(S2I)3, (SI′I)3, (I″I′I)3, (I′I)4 a high molecular and compositional homogeneity.

AB - The synthesis of second-generation (G-2) dendritic polymers of isoprene (I) and styrene (S) was achieved with anionic polymerization high-vacuum techniques and by performing the following steps: (1) selective reaction of a living chain with the chlorosilane group of 4-(chlorodimethylsilyl)styrene (a dual-functionality compound) to produce a macromonomer, (2) addition of a second living chain (same or different) to the double bond of the macromonomer, (3) polymerization of I with the anionic sites, and (4) reaction of the produced off-center living species with trichloromethyl silane or tetrachlorosilane (CH3SiCl3 or SiCl4). The combined characterization results showed that the G-2 dendritic macromolecules synthesized-(S2I)3, (SI′I)3, (I″I′I)3, (I′I)4 a high molecular and compositional homogeneity.

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