Aggregation of 3,5-dihydroxybenzyl alcohol based dendrimers and hyperbranched polymers, and encapsulation of DR1 in such dendritic aggregates

被引：19

作者：

Bourrier, O ^{[1
]}

Butlin, J ^{[1
]}

Hourani, R ^{[1
]}

Kakkar, AK ^{[1
]}

机构：

[1] McGill Univ, Dept Chem, Montreal, PQ H3A 2K6, Canada

来源：

INORGANICA CHIMICA ACTA | 2004年 / 357卷 / 13期

基金：

加拿大自然科学与工程研究理事会;

关键词：

dendrimers; hyperbranched polymers; aggregation; dynamic light scattering; transmission electron microscopy; encapsulation; disperse red 1;

D O I：

10.1016/j.ica.2004.02.016

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The aggregation behavior of 3,5-dihydroxybenzyl alcohol based dendritic polymers through intermolecular hydrogen bonding between periphery situated variable number of OH groups was studied using dynamic light scattering and transmission electron microscopy. Size of the aggregates was found to be dependent on the generation number of dendrimers: generations 1-3 form aggregates above critical aggregation concentration (cac), while higher generations (4-5) aggregate even at concentrations much lower than cac. Encapsulation of the dye disperse red 1 (DR1) into dendrimer aggregates was accompanied by a blue shift in the UV-Vis absorption spectrum of DR1. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：3836 / 3846

页数：11

共 31 条

[1] Dendritic catalysts and dendrimers in catalysis [J].