Random Poly(methyl methacrylate‐<i>co</i>‐styrene) Brushes by ATRP to Create Neutral Surfaces for Block Copolymer Self‐Assembly

Liu, Hui; O'Mahony, Colm T.; Audouin, Fabrice; Ventura, Claudia; Morris, Michael A.; Heise, Andreas

doi:10.1002/macp.201100531

Cited by 20 publications

(16 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[20][21][22] The structure and composition of the resulting copolymer are studied in detail, and the self-assembly process and morphology transition are also discussed. To enhance the application of the polymeric micelles, the controlled release of coumarin 102 under single and combined stimulation is investigated to some extent.…”

Section: The Loading and Release Of Coumarin 102 For The Self-assemblmentioning

confidence: 99%

Self-assembly and morphology transition of amphipathic spiropyran-based random copolymers to control drug release

Chen

Liu

et al. 2016

Designed Monomers and Polymers

Self Cite

View full text Add to dashboard Cite

An amphipathic spiropyran-based random copolymer P(SPMA-co-DMAEMA) was synthesized by atom transfer radical polymerization, and the resulting copolymer was characterized by means of 1 H nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, and gel permeation chromatography. The self-assembly behaviors and morphology transition were systematically investigated under single and combined external environmental stimuli by transmission electron microscopy. With coumarin 102 as the model drug molecule, the selfassembly micelles were used to control drug loading, release, and re-encapsulation to some extent. The characterization results indicated the successful preparation of the spiropyran-based random copolymer P(SPMA-co-DMAEMA). The external stimuli had some influences on the morphology of the self-assembly aggregate, and the 'schizophrenic' behavior was interestingly found in this work. The drug release experiments showed the reversible loading and release process up to a point, which might expand the potential application domain of the amphiphilic spiropyran-based random copolymer in drug delivery.

show abstract

Section: The Loading and Release Of Coumarin 102 For The Self-assemblmentioning

confidence: 99%

Self-assembly and morphology transition of amphipathic spiropyran-based random copolymers to control drug release

Chen

Liu

et al. 2016

Designed Monomers and Polymers

Self Cite

View full text Add to dashboard Cite

show abstract

“…ATRP has been successfully used to synthesize the well-defined polymer-silicon hybrids. [14][15][16][17][18] Reversible addition-fragmentation chain-transfer (RAFT)-mediated polymerization is an alternative method in the controlled free-radical polymerization. It involves a reversible addition-fragmentation cycle where the transfer of a dithioester moiety between the active and dormant species maintains the controlled feature of the polymerization process.…”

Section: Introductionmentioning

confidence: 99%

Covalent Immobilization of Glucose Oxidase on Well-Defined Polymer-Silicon Wafer Hybrids via Surface-Initiated Raft-Mediated Process

Xia

Liu

et al. 2013

J. Chil. Chem. Soc.

View full text Add to dashboard Cite

A surface modification technique was developed for the functionalization of silicon surface with glucose oxidase (GOD). The silicon surface was first graft copolymerized with glycidyl methacrylate (GMA) via surface-initiated reversible addition-fragmentation chain-transfer (RAFT)-mediated process. GOD was then covalently immobilized through the ring-opening reaction between the amine groups of the GOD and the epoxide groups of the grafted GMA polymer chains. X-ray photoelectron spectroscopy (XPS) was used to characterize the surface-modified surface after each modification stage. Increasing the thickness of the polymer layer and the immobilization time could allow a great amount of GOD to be immobilized on the silicon surface. The GOD-functionalized silicon hybrids are promising candidates for the silicon-based glucose biosensors.

show abstract

“…17A shows an ATRP initiator except it has no silane head group meaning that it will not form a monolayer and stay in solution. 242,255,259 Polymers formed in solution can be analysed by gel permeation chromatography (GPC), or size exclusion chromatography 124,246,255,260,261 to calculate the degree of polymerisation. The polymers formed via free initiators are shown to correlate well with surface attached initiators.…”

Section: Sacricial Initiatorsmentioning

confidence: 99%

“…222,244 Copper is usually the transition metal choice for ATRP. 27,121,222,[241][242][243][245][246][247] Through ATRP, Ejaz et al synthesised methyl methacrylate brushes on silicon wafers using a Cu based catalyst aer a trimethoxysilane initiator was immobilised on the surface using LangmuirBlodgett techniques. 222,224,245 Since then the technique has been implemented onto gold, inorganic particles, organic latexes, formed dendrimers, highly functionalised linear brushes, and varied compositions and sizes.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Challenges and developments of self-assembled monolayers and polymer brushes as a green lubrication solution for tribological applications

et al. 2015

View full text Add to dashboard Cite

ab Self-assembled monolayers (SAMs), after originally being investigated due to their functions in changing surface wettability, have been significantly developed over the years. Many types of SAMs have been developed on a variety of substrates. However their formation mechanism, rate and quality are found to be influenced by many factors. A range of SAMs including single-and multi-component are included in this review with focus on the nano and macro tribological properties. More recently, surface initiated polymer brushes, i.e. macromolecular assemblies attached to a substrate, have emerged to be an alternative and promising method for surface modification. The ability to tether these macromolecules to tribological contacts is key to their resistance to shear under loaded contacts. This review also covers atom transfer radical polymerisation (ATRP) and the role of this technique in developing new lubrication solutions. Particular care has been taken to include the development of lubrication solutions for silicon nitride due to the importance of this material as an engineering ceramic. This paper reviews the stateof-the-art development of SAMs and polymer brushes especially the potential opportunities and challenges in applying them in tribological contacts as a lubrication solution.

show abstract

Random Poly(methyl methacrylate‐co‐styrene) Brushes by ATRP to Create Neutral Surfaces for Block Copolymer Self‐Assembly

Cited by 20 publications

References 25 publications

Self-assembly and morphology transition of amphipathic spiropyran-based random copolymers to control drug release

Self-assembly and morphology transition of amphipathic spiropyran-based random copolymers to control drug release

Covalent Immobilization of Glucose Oxidase on Well-Defined Polymer-Silicon Wafer Hybrids via Surface-Initiated Raft-Mediated Process

Challenges and developments of self-assembled monolayers and polymer brushes as a green lubrication solution for tribological applications

Contact Info

Product

Resources

About