Well-Defined Lactose-Containing Polymer Grafted onto Silica Particles

Guo, Tianying; Liu, Ping; Zhu, Jingwei; Song, Mou-Dao; Zhang, Banghua

doi:10.1021/bm051011t

Cited by 91 publications

(59 citation statements)

References 47 publications

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“…Several papers report on the synthesis of glycopolymers by RAFT polymerization of acrylamide, [178] vinyl ester, [179] or methacrylate [82,180,181] derivatives of glucose or lactose. Relatively broad polydispersities (M w /M n ∼ 1.5-3) were obtained in RAFT polymerization of itaconate esters (e.g.…”

Section: Raft Polymer Synthesesmentioning

confidence: 99%

“…[247] A RAFT-synthesized glycopolymer was grafted to silica particles by copolymerization of silica particles modified with 3-(trimethoxysilyl)propyl methacrylate (TPSM). [181] PBA and PDMA grafts have been formed on poly(divinylbenzene) microspheres. [248] The process involved RAFT polymerization of the monomer in the presence of microspheres prepared by precipitation polymerization and which possess pendant double bonds.…”

Section: Grafting-through Processesmentioning

confidence: 99%

See 1 more Smart Citation

Living Radical Polymerization by the RAFT Process—A First Update

Moad¹,

Rizzardo²,

Thang³

2006

Aust. J. Chem.

859

787

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This paper provides a first update to the review of living radical polymerization achieved with thiocarbonylthio compounds (ZC(=S)SR) by a mechanism of Reversible Addition-Fragmentation chain Transfer (RAFT) published in June 2005. The time since that publication has witnessed an increased rate of publication on the topic with the appearance of well over 200 papers covering various aspects of RAFT polymerization ranging over reagent synthesis and properties, kinetics, and mechanism of polymerization, novel polymer syntheses, and diverse applications.

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Section: Raft Polymer Synthesesmentioning

confidence: 99%

Section: Grafting-through Processesmentioning

confidence: 99%

Living Radical Polymerization by the RAFT Process—A First Update

Moad¹,

Rizzardo²,

Thang³

2006

Aust. J. Chem.

859

787

View full text Add to dashboard Cite

show abstract

“…As shown in Figure 5(III)a, the main temperature regions of weight loss appear in the interval 400-500°C, which can be assigned to the dehydration condensation reaction of the hydroxyl on the silica surface , and the chemical reaction equations can be expressed as Equation (1) [48], the surface grafting density of SiO 2 -TDI and SiO 2 -P(7-6-AC)-b-PNIPAAm was calculated to be about 1.29 mmol/g (0.222 g/g) and 0.02 mmol/g (0.188 g/g) respectively. Obviously, the graft density obtained from 'click chemistry' is higher than that of the traditional and classic method [49,50], for example SiO 2 surface silanization using silane coupling agent.…”

Section: Fabrication Ofmentioning

confidence: 91%

Dual-switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and RAFT

Han¹,

Zhang²,

Li³

et al. 2014

Express Polym. Lett.

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The wetting properties of superhydrophobic surfaces have received worldwide and tremendous attention [1] since the dual hierarchical structure of the lotus leaf was discovered [2]. Lotus-Leaf-like superhydrophobic surfaces, exhibit an amazing property for not only being wetted by water leading to a self-cleaning effect [3], but also for their great advantages in applications. In recent years, superhydrophobic surfaces are widely used in the human body implant materials [4], microfluidic tools [5], Calix azacrown [6], tunable optical lenses [7], labon-chip systems [8]. The wettability of the surface is influenced by its chemical composition and morphology [9], because chemical composition determines the surface free energy, and a lower surface energy leads to higher hydrophobicity. Additionally, the hierarchical structure (micro roughness covered with nano roughness) was not only necessary for a high contact angle (CA) but essential for the stability of the water-solid and water-air interfaces [10] Received 1 January 2014; accepted in revised form 1 April 2014Abstract. A dual-switchable surface between hydrophobic and superhydrophobic has been fabricated successfully by combining reversible addition-fragmentation chain transfer polymerization (RAFT) polymeric technology and thiol-NCO click chemistry. Well-defined block copolymer, poly(7-(6-(acryloyloxy) hexyloxy) coumarin)-b-poly(N-Isopropylacryl amide), was synthesized by RAFT, and then the block copolymer was grafted onto the surface of SiO 2 modified by toluene disocynate (TDI) via thiol-NCO click chemistry. The results of nuclear magnetic resonance (NMR) and Fourier Transform Infrared (FTIR) spectroscopies confirmed that the block copolymer (Number average molecular weight (M n ) = 9400, polydispersity index (PDI) = 1.22) has been synthesized successfully. The static contact angle (CA) of the surface prepared by SiO 2 /P (7-6-AC)-b-PNIPAAm switches from 98±2 to 137±2° by adjusting the temperature. Furthermore, the contact angle can also oscillate between 137±2 and 157±2° on the irradiation of UV light at 365 and 254 nm, respectively. The dual-switchable surfaces exhibit high stability between hydrophilicity and superhydrophobicity. Therefore, the method provides a new method to fabricate the dual-stimuli-responsive surface with tunable wettability, reversible switching, and also be easily extended to other dual-responsive surfaces. This ability to control the wettability by the adjustment of the temperature and UV light has applications in a broad range of fields.

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“…Guo et al [187] described the polymerization of lactoside methacrylate M43 in the presence of cumyl dithiobenzoate R9 as the RAFT agent (chloroform, 70 °C, 24 h; Entry 212, Table 3). Uniform polymers were obtained (Đ = 1.09-1.34) with good control over the molar mass (M n /M n,th = 0.87) but a non-steady state kinetics was observed during the first 4 h of polymerization accompanied by a jump in the molar mass of the polymer ("hybrid" behavior between conventional radical and RAFT polymerization).…”

Section: (Meth)acrylate Monomersmentioning

confidence: 99%

Synthesis of Glycopolymer Architectures by Reversible-Deactivation Radical Polymerization

Ghadban

Albertin

2013

Polymers

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This review summarizes the state of the art in the synthesis of well-defined glycopolymers by Reversible-Deactivation Radical Polymerization (RDRP) from its inception in 1998 until August 2012. Glycopolymers architectures have been successfully synthesized with four major RDRP techniques: Nitroxide-mediated radical polymerization (NMP), cyanoxyl-mediated radical polymerization (CMRP), atom transfer radical polymerization (ATRP) and reversible addition-fragmentation chain transfer (RAFT) polymerization. Over 140 publications were analyzed and their results summarized according to the technique used and the type of monomer(s) and carbohydrates involved. Particular emphasis was placed on the experimental conditions used, the structure obtained (comonomer distribution, topology), the degree of control achieved and the (potential) applications sought. A list of representative examples for each polymerization process can be found in tables placed at the beginning of each section covering a particular RDRP technique.

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Well-Defined Lactose-Containing Polymer Grafted onto Silica Particles

Cited by 91 publications

References 47 publications

Living Radical Polymerization by the RAFT Process—A First Update

Living Radical Polymerization by the RAFT Process—A First Update

Dual-switchable surfaces between hydrophobic and superhydrophobic fabricated by the combination of click chemistry and RAFT

Synthesis of Glycopolymer Architectures by Reversible-Deactivation Radical Polymerization

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