نتایج جستجو برای: graft polymerization

تعداد نتایج: 113644  

Journal: :Journal of materials chemistry 2011
Mingyan Zhou Hongwei Liu Adith Venkiteshwaran James Kilduff Daniel G Anderson Robert Langer Georges Belfort

A novel high throughput method for synthesis and screening of customized protein-resistant surfaces was developed. This method is an inexpensive, fast, reproducible and scalable approach to synthesize and screen protein-resistant surfaces appropriate for a specific feed. The method is illustrated here by combining a high throughput platform (HTP) approach together with our patented photo-induce...

2014
Hwan Hee Oh Young-Gwang Ko Hiroshi Uyama Won Ho Park Donghwan Cho Oh Hyeong Kwon

Rapid cell growth and rapid recovery of intact cultured cells are an invaluable technique to maintain the biological functions and viability of cells. To achieve this goal, thermoresponsive polystyrene (PS) nanofibrous mat was fabricated by electrospinning of PS solution, followed by the graft polymerization of thermoresponsive poly(N-isopropylacrylamide)(PIPAAm) on PS nanofibrous mats. Image a...

2004
Z. F. Li M. T. Swihart E. Ruckenstein

Graft polymerization has been used, for the first time, to prepare a dense conductive polymer coating on free-standing luminescent silicon nanoparticles. The silicon nanoparticles maintained their photoluminescence and crystallinity after surface modification. The nanoparticles were first surface hydroxylated and then reacted with (3-bromopropyl)trichlorosilane to form a dense bromopropylsilane...

2013
Guillaume Moreira Laurence Charles Mohamed Major Florence Vacandio Yohann Guillaneuf Catherine Lefay Didier Gigmes

The range of applications of cellulose, a glucose-based polysaccharide, is limited by its inherently poor mechanical properties. The grafting of synthetic polymer chains by, for example, a "grafting from" process may provide the means to broaden the range of applications. The nitroxide-mediated polymerization (NMP) method is a technique of choice to control the length, the composition and the a...

Journal: :Macromolecular bioscience 2004
Birten Cakmakli Baki Hazer Ishak Ozel Tekin Sait Kizgut Murat Koksal Yusuf Menceloglu

Syntheses of wholly natural polymeric linseed oil (PLO) containing peroxide groups have been reported. Peroxidation, epoxidation and/or perepoxidation reactions of linseed oil, either under air or under oxygen flow at room temperature, resulted in polymeric peroxides, PLO-air and PLO-ofl, containing 1.3 and 3.5 wt.-% of peroxide, with molecular weights of 2 100 and 3 780 Da, respectively. PLO-a...

Journal: :Journal Of Macromolecular Science, Part A 2022

Synthesis of poly(vinyl chloride-g-β-butyrolactone) [poly(VC-g-BL)] graft copolymer was carried out by means “click” chemistry terminally propargyl polyβ-butyrolactone ester (PBL-propargyl) and polyvinyl chloride with pendant azido group (PVC-N3). PVC-N3 synthesized reaction purified PVC sodium azide. PBL-propargyl obtained the β-butyrolactone alcohol ring-opening polymerization. By using PBL-p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی پلیمر 1386

پلیمریزاسیون درجای (in-situ) منومر استایرن در حضور لاستیک پلی بوتادی ان با جرم مولکولی پایین و گروه های هیدروکسیل انتهایی به تشکیل کوپلیمر پیوندی با ساختار مایسلی غیر مقاوم منجر شد. از طرف دیگر, استفاده از پلی بوتادی ان تهیه شده به روش رادیکالی به دلیل کمبود ریز ساختار 2و1 وینیل به عنوان مرکز مستعد پیوند شاخه های پلی استایرن, با مشکل عدم دستیابی به ساختار مناسب وتامین مقاومت به ضربه مواجه خواهد...

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