One-pot synthesis of hyperbranched polymers using small molecule and macro RAFT inimers

Wei, Zhenke; Hao, Xiaojuan; Kambouris, Peter; Gan, Zhihua; Hughes, Timothy C.

doi:10.1016/j.polymer.2012.02.011

Cited by 29 publications

(29 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This involves copolymerization of monomers containing RAFT functionality. Examples of such RAFT inimers are 20, [253] 23, [460] 178, [460] and 230. [512] Star polymers can be formed by chain extension of the hyperbranched structure.…”

Section: Self-condensing Vinyl Polymerizationmentioning

confidence: 99%

“…[512] Star polymers can be formed by chain extension of the hyperbranched structure. The synthesis of St and acrylic polymers was achieved using dithiobenzoates, 20 [253] or 23, [256] or trithiocarbonate, 178, [460] and VAc polymers using xanthate, 230. [512] 'Grafting to' Various combinations of RAFT, ATRP, click, ring opening polymerization, and other methods have been used to synthesize star polymers, including mikto-arm stars.…”

Section: Self-condensing Vinyl Polymerizationmentioning

confidence: 99%

“…n K* [223] DMAEMA [223] 2VP-b-St [252] 20 RAFT inimer [253] St [253] K [254] 407 [254] 22 peptide macro-RAFT agent [255] HPMAm [255] 23 RAFT inimer…”

mentioning

confidence: 99%

See 2 more Smart Citations

Living Radical Polymerization by the RAFT Process – A Third Update

2012

View full text Add to dashboard Cite

This paper provides a third update to the review of reversible deactivation radical polymerization (RDRP) achieved with thiocarbonylthio compounds (ZC(¼S)SR) by a mechanism of reversible addition-fragmentation chain transfer ( Chem. 2009Chem. , 62, 1402. This review cites over 700 publications that appeared during the period mid 2009 to early 2012 covering various aspects of RAFT polymerization which include reagent synthesis and properties, kinetics and mechanism of polymerization, novel polymer syntheses, and a diverse range of applications. This period has witnessed further significant developments, particularly in the areas of novel RAFT agents, techniques for end-group transformation, the production of micro/nanoparticles and modified surfaces, and biopolymer conjugates both for therapeutic and diagnostic applications.

show abstract

Section: Self-condensing Vinyl Polymerizationmentioning

confidence: 99%

Section: Self-condensing Vinyl Polymerizationmentioning

confidence: 99%

See 1 more Smart Citation

Living Radical Polymerization by the RAFT Process – A Third Update

2012

View full text Add to dashboard Cite

show abstract

“…Synthesis of the RAFT inimer has been adopted from the procedure reported by Wei et al (2012). In a round-bottomed flask, a mixture of CPP (100 mg, 0.358 mmol), HEMA (92.98 mg, 0.714 mmol) and DMAP (13.07 mg, 0.107 mmol) was dissolved in dichloromethane (30 mL) (Scheme 1).…”

Section: Synthetic Procedures Synthesis Of 2-(methacryloyloxy)ethyl-mentioning

confidence: 99%

Electrodeposition and Thin Film Formation of Hyperbranched Poly(N-Vinylcarbazole) on Indium-Tin-Oxide Substrates

Eduardo

Arco

2016

KIMIKA

View full text Add to dashboard Cite

Thin films consisting of carbazole moieties are of current interest due to their various applications in optical and electronic devices. This study focuses on a new polymeric structure of carbazole and its ability to form films on conductive substrates. Hyperbranched poly(N-vinylcarbazole) (HPVK) was synthesized by reversible additionfragmentation chain transfer (RAFT) polymerization in the presence of an initiator monomer, 2-(methacryloyloxy)ethyl, 4-cyano-4 (phenyl carbonothioylthio)pentanoate (CPP-HEMA). The hyperbranched polymer was then electrodeposited by cyclic voltammetry on indium-tin-oxide (ITO) substrates to afford the electroactive thin films. The films were analyzed by atomic force microscopy (AFM), UV spectroscopy and ellipsometry. These data were compared to the ones obtained using linear poly(Nvinylcarbazole) (LPVK). Effective electrodeposition on ITO substrates was proven by the peak observed at 430 nm in the UV spectrum and by the characteristic anodic and cathodic peaks present in the cyclic voltammogram. Furthermore, results showed that HPVK produced smoother, more homogeneous and thinner films with film thickness of 10 nm.

show abstract

“…To compare with other RDRP methods, such as atom transfer radical polymerization (ATRP), the RAFT technique does not involve any metal catalyst, hence, there is no trace of metal contaminants in the final products, unlike the ATRP method [19,33]. RAFT polymerization allows the synthesis of several functional polymeric materials and the design of hyperbranched polymers [34][35][36][37]. Due to its advantages, RAFT polymerization has been used to prepare cross-linked polymers, such as MIPs synthesis [20,38,39] and other homogeneous polymer networks [40,41].…”

Section: Introductionmentioning

confidence: 99%

Effects of RAFT Agent on the Selective Approach of Molecularly Imprinted Polymers

2015

View full text Add to dashboard Cite

Two types of reversible addition-fragmentation chain transfer molecularly imprinted polymers (RAFT-MIPs) were synthesized using different monomers, which were methacrylic acid functionalized β-cyclodextrin (MAA-β-CD) and 2-hydroxyethyl methacrylate functionalized β-cyclodextrin (HEMA-β-CD), via reversible addition-fragmentation chain transfer (RAFT) polymerization, and were represented as RAFT-MIP(MAA-β-CD) and RAFT-MIP(HEMA-β-CD), respectively. Both RAFT-MIPs were systematically characterized using Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FESEM), Brunauer-Emmett-Teller (BET), and rebinding experimental study. The results were compared with MIPs synthesized via the traditional radical polymerization (TRP) process, and were represented as MIP(MAA-β-CD) and MIP(HEMA-β-CD). Morphology results show that RAFT-MIP(MAA-β-CD) has a slightly spherical feature with a sponge-like form, while RAFT-MIP(HEMA-β-CD) has a compact surface. BET results show that the surface area of RAFT-MIP(MAA-β-CD) is higher than MIP(MAA-β-CD), while the RAFT-MIP(HEMA-β-CD) surface area is lower than that of MIP(HEMA-β-CD). Rebinding experiments indicate that the RAFT agent increased the binding capacity of RAFT-MIP(MAA-β-CD), but not of RAFT-MIP(HEMA-β-CD), which proves that a RAFT OPEN ACCESSPolymers 2015, 7 485 agent does not always improve the recognition affinity and selective adsorption of MIPs. The usability of a RAFT agent depends on the monomer used to generate potential MIPs.

show abstract

One-pot synthesis of hyperbranched polymers using small molecule and macro RAFT inimers

Cited by 29 publications

References 28 publications

Living Radical Polymerization by the RAFT Process – A Third Update

Living Radical Polymerization by the RAFT Process – A Third Update

Electrodeposition and Thin Film Formation of Hyperbranched Poly(N-Vinylcarbazole) on Indium-Tin-Oxide Substrates

Effects of RAFT Agent on the Selective Approach of Molecularly Imprinted Polymers

Contact Info

Product

Resources

About