PREPARATION OF MONODISPERSE CROSS-LINKED POLYSTYRENE MICROSPHERES BY COMBINING DISPERSION POLYMERIZATION WITH HYDROTHERMAL PROCESS

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Preparation of monodisperse PMMA microspheres in nonpolar solvents by dispersion polymerization with a macromonomeric stabilizer

Recently, monodisperse polymer colloids have found a new application as templates for photonic crystals [1]. At a sufficiently high volume fraction and low polydispersity, spherical particles will self assemble into a facecentered cubic lattice, even in the absence of attractive interparticle forces [2]. Such structures can diffract light if the wavelength is comparable to the spacing between t...

متن کامل

Synthesis of highly monodisperse polystyrene microspheres via dispersion polymerization using an amphoteric initiator.

The highly monodisperse polystyrene (PS) microspheres were produced by dispersion polymerization using an amphoteric initiator, 2,2'-azobis [N-(2-carboxyethyl)-2-2-methylpropionamidine] (VA-057). The polymerization characteristics were investigated and compared with conventional initiators, 2,2-azobis(isobutyronitrile) (AIBN) and benzoyl peroxide (BPO). The monodisperse PS microspheres having t...

متن کامل

Preparation and characterization of monodisperse molecularly imprinted polymer microspheres by precipitation polymerization for kaempferol

A new kind of molecularly imprinted polymer (MIP) microspheres for the selective extraction of kaempferol was prepared by precipitation polymerization using 4-vinylpridine (4-VP) and ethylene glycol dimethacrylate (EDMA) as functional monomer and cross-linker respectively. The synthesis conditions, such as ratios of 4-VP/EDMA and polymerization time were discussed in detail. Results showed that...

متن کامل

Direct radical polymerization of 4-styryldiphenylphosphine: preparation of cross-linked and non-cross-linked triphenylphosphine-containing polystyrene polymers.

We report herein a simple synthesis of 4-styryldiphenylphosphine and the radical copolymerization of it with styrene, both with and without a cross-linker, to directly form cross-linked and non-cross-linked polystyrene supported triphenylphosphine in which the level of phosphine incorporation can be easily and accurately controlled. The utility of these polymers is demonstrated by their use in ...

متن کامل

Preparation of cassava starch grafted with polystyrene by suspension polymerization.

Cassava starch grafted with polystyrene (PS-g-starch) copolymer was synthesized via free-radical polymerization of styrene by using suspension polymerization technique. Potassium persulfate (PPS) was used as an initiator and water was used as a medium. The graft copolymer was characterized by Fourier transform infrared spectroscopy, differential scanning calorimetry, thermal gravimetric analysi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Acta Polymerica Sinica

سال: 2013

ISSN: 1000-3304

DOI: 10.3724/sp.j.1105.2013.12150