Preparation of polymer particles having ethyleneurea groups at their surfaces by emulsifier-free seeded emulsion polymerization and wet adhesion of its emulsion film

Okubo, Masayoshi; Kagawa, Yasuyuki; Matsuda, Mitsuo; Terada, Akinori

doi:10.1007/s00396-003-0981-3

Cited by 9 publications

(2 citation statements)

References 1 publication

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“…The functional polymer microspheres with optimized characteristics, such as uniform size and shape, functionality of the base polymer, morphology of the polymer particles, and degree of crosslinking, have been widely used in various fields, such as biotechnology, metallic colloid stabilizer, chromatography separation, biomedical devices, coating additives, controlled release reservoirs, and in other areas 1–8. To date, work has been reported on the utilization of microspheres as microscopic markers for antigens and antibodies on the surface of the cells 9.…”

Section: Introductionmentioning

confidence: 99%

Preparation of poly(divinylbenzene‐co‐N‐isopropylacrylamide) microspheres and their hydrogen‐bonding assembly behavior for raspberry‐like core‐corona polymer composite

Song

Yang

et al. 2007

J of Applied Polymer Sci

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Narrowdisperse poly(divinylbenzene-co-Nisopropylacrylamide) (poly(DVB-co-NIPAM)) functional microspheres with the diameter in the range of 630 nm and 2.58 mm were prepared by distillation-precipitation polymerization in neat acetonitrile in the absence of any stabilizer. The effect of N-isopropylacrylamide (NIPAM) ratio in the comonomer feed on the morphology of the resultant polymer particles was investigated in detail with divinylbenzene (DVB) as crosslinker and 2,2 0 -azobisisobutyronitrile (AIBN) as initiator. The monodisperse poly(DVB-co-NIPAM) microspheres with NIPAM fraction of 20 wt % were selected for the preparation of raspberry-like core-corona polymer composite by the hydrogen-bonding self-assembly heterocoagulation with poly(ethyleneglycol dimethacrylate-co-acrylic acid) [poly (EGDMA-co-AA)] nanospheres. Both of the functional poly (DVB-co-NIPAM) microspheres and the core-corona particles were characterized with scanning electron microscopy (SEM), Fourier transform infrared spectra (FTIR), and elemental analysis (EA).

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Section: Introductionmentioning

confidence: 99%

Preparation of poly(divinylbenzene‐co‐N‐isopropylacrylamide) microspheres and their hydrogen‐bonding assembly behavior for raspberry‐like core‐corona polymer composite

Song

Yang

et al. 2007

J of Applied Polymer Sci

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“…[1][2][3][4][5][6][7][8][9] Emulsifier-free emulsion polymerization (EFEP) is used widely to prepare polymers with a variety of functional groups, such as carboxylate, [10][11][12][13][14][15] sulfonate, 16,17 hydroxyl, 18,19 aldehyde, 20,21 amino, 22,23 epoxy, 19,24 vinyl, 25 sulfhydryl, 26 chloromethyl, 27,28 active ester, 29,30 ethylene urea, 31 and cyano 32 groups. Functionalized latices accessed through EFEP are prepared in the presence of either water-soluble surface active initiators 33,34 or hydrophilic comonomers (with or without ions).…”

Section: Introductionmentioning

confidence: 99%

Emulsifier‐free emulsion polymerization of styrene with 4‐vinylbenzoic acid: Kinetics and distribution of the carboxyl groups

Ramaswamy

Margarit-Puri

Klapper

2006

J of Applied Polymer Sci

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Carboxylated polystyrene particles were prepared by the batch emulsion polymerization of styrene (Sty) with 4-vinylbenzoic acid (VBA) in the absence of an emulsifier with K 2 S 2 O 8 as a free-radical initiator. The effect changes in the ratio of potassium hydroxide to VBA and the concentration of VBA to Sty on the kinetics, monomer conversion, distribution of carboxyl groups, and particle size distribution were analyzed. The stability of the latices was evaluated.

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Preparation of narrow‐dispersion or monodisperse polymer microspheres with active hydroxyl group by distillation–precipitation polymerization

Bai

Yang

et al. 2005

Polymer International

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Narrow‐dispersion or monodisperse polymer microspheres with active hydroxyl groups were prepared by distillation–precipitation polymerization in the absence of any stabilizer. The monomer hydroxyethyl methacrylate (HEMA) was copolymerized with either commercial divinylbenzene (DVB) (containing 80 % of DVB isomers) or ethyleneglycol dimethacrylate (EGDMA) as crosslinker by distillation–precipitation polymerization technique with 2,2′‐azobisisobutyronitrile (AIBN) as initiator in neat acetonitrile. The effects of the crosslinker and the crosslinking degree on the morphology and the loading of the active hydroxyl group of the resultant microspheres were investigated. The agitation caused by distilling off a portion of the polymerization solvent during the polymerization avoided coagulation and resulted in the narrow‐dispersion or monodisperse polymer microspheres for the distillation precipitation technique. Copyright © 2005 Society of Chemical Industry

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Preparation of polymer particles having ethyleneurea groups at their surfaces by emulsifier-free seeded emulsion polymerization and wet adhesion of its emulsion film

Cited by 9 publications

References 1 publication

Preparation of poly(divinylbenzene‐co‐N‐isopropylacrylamide) microspheres and their hydrogen‐bonding assembly behavior for raspberry‐like core‐corona polymer composite

Preparation of poly(divinylbenzene‐co‐N‐isopropylacrylamide) microspheres and their hydrogen‐bonding assembly behavior for raspberry‐like core‐corona polymer composite

Emulsifier‐free emulsion polymerization of styrene with 4‐vinylbenzoic acid: Kinetics and distribution of the carboxyl groups

Preparation of narrow‐dispersion or monodisperse polymer microspheres with active hydroxyl group by distillation–precipitation polymerization

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