نتایج جستجو برای: macroinitiator

تعداد نتایج: 77  

Journal: :Macromolecules 2023

Hybrid molecular brushes (HMBs), or bottlebrush polymers, are polymeric constructs containing a linear backbone and side chains with different chemical characteristics. Hybrid-block graft copolymers (HCPs) similar to traditional HMBs, except their consists of more than one polymer. We developed facile method for the synthesis family amphiphilic, biodegradable HCPs composed two blocks: hydrophil...

2015
Li Qun Xu Ning Ning Li Bin Zhang Jiu Cun Chen Nicolay Tsarevsky

The preparation of PEGylated fluorescent nanoparticles (NPs) based on atom transfer radical polymerization (ATRP) and “click chemistry” in one-pot synthesis is presented. First, poly(p-chloromethyl styrene-alt-N-propargylmaleimide) (P(CMS-alt-NPM)) copolymer was prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization. Subsequently, the azido-containing fluorene-based...

2003
YI YI XINHUA WAN XINGHE FAN RONG DONG QIFENG ZHOU

A series of novel rod–coil diblock copolymers on the basis of mesogenjacketed liquid-crystalline polymer were successfully prepared by atom transfer radical polymerization from the flexible polydimethylsiloxane (PDMS) macroinitiator. The hybrid diblock copolymers, poly{2,5-bis[(4-methoxyphenyl)oxycarbonyl]styrene}-blockpolydimethylsiloxane, had number-average molecular weights (Mn’s) ranging fr...

2007
Leena Nurmi Susanna Holappa Hannu Mikkonen Jukka Seppälä

Graft copolymers of acetylated starch oligomer (AS) and poly(methyl methacrylate) (PMMA) were polymerized by atom transfer radical polymerization (ATRP). AS was converted to an ATRP macroinitiator by converting a part of the hydroxyl groups of AS to 2-bromoisobutyryl groups. Macroinitiators with varying degrees of substitution for the 2-bromoisobutyryl group were prepared. The polymerizations w...

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