نتایج جستجو برای: atrp

تعداد نتایج: 663  

2017
Aishun Ding Guolin Lu Hao Guo Xiaoyu Huang

A series of ABA triblock copolymers, consisting of double-bond-containing poly(phenoxyallene) (PPOA), poly(methyl methacrylate) (PMMA), or poly(butyl acrylate) (PBA) segments, were synthesized by sequential free radical polymerization and atom transfer radical polymerization (ATRP). A new bifunctional initiator bearing azo and halogen-containing ATRP initiating groups was first prepared followe...

2013
Akhilesh Kumar Shakya Ashok Kumar

Article info: Received: 23 January 2013 Accepted: 5 February 2013 ABSTRACT One of the major challenges in modern synthetic polymer chemistry is to synthesize end defined polymers of different end functionality with predetermined uniform molecular weight. End functionalized polymers/copolymers basically in block and grafting form are having several potential applications in biomedical areas in t...

Journal: :Progress in polymer science 2012
Daniel J Siegwart Jung Kwon Oh Krzysztof Matyjaszewski

Atom Transfer Radical Polymerization (ATRP) is an effective technique for the design and preparation of multifunctional, nanostructured materials for a variety of applications in biology and medicine. ATRP enables precise control over macromolecular structure, order, and functionality, which are important considerations for emerging biomedical designs. This article reviews recent advances in th...

Journal: :Peptides 2009
Susanne Neupert William K Russell David H Russell Juan D López Reinhard Predel Ronald J Nachman

Recently, the peptidomic analysis of neuropeptides from the retrocerebral complex and abdominal perisympathetic organs of polyphagous stinkbugs (Pentatomidae) revealed the group-specific sequences of pyrokinins, CAPA peptides (CAPA-periviscerokinins/PVKs and CAPA-pyrokinin), myosuppressin, corazonin, adipokinetic hormone, and short neuropeptide F. In this study, we used mass spectrometric profi...

2014
Ranil Wickramasinghe Xianghong Qian

........................................................... 1 Objective........................................................... 2 Background ...................................................... 2 Materials and Methods.................................... 5 Chemicals .......................................................................................................................5 Surfa...

2005
Yi Yi Xing-he Fan Yong-feng Zhao Xiao-fang Chen Xin-hua Wan Qi-feng Zhou

A side-on liquid crystalline monomer, 2,5-bis[(4-hexyloxyphenyl)oxycarbonyl]styrene) (HPCS), was successfully polymerized via atom transfer radical polymerization (ATRP). The polymerization was catalyzed by CuBr/PMDETA in chlorobenzene at 90°C with (1-bromoethyl)benzene as the initiator. The polymers have narrow MWD. It is the second example of mesogen-jacketed liquid crystalline polymer (MJLCP...

ژورنال: :مجله علوم و تکنولوژی پلیمر 2015
خضراله خضری وحید حدادی اصل حسین روغنی ممقانی

نانوکامپوزیت های پلی استیرن/mcm–41 به روش پلیمرشدن رادیکالی انتقال اتم (atrp) در دمای 110 درجه سلسیوس سنتز شدند. روش های آغاز فعال کننده هایی که با انتقال الکترون تولید می شوند (aget) و فعال کننده هایی که با انتقال الکترون بازتولید می شوند (arget) به­ عنوان دو روش نوین آغاز در atrp به­ کار گرفته شدند. ساختار ویژه، مساحت سطح، اندازه ذرات و توزیع آنها و ساختار اسفنجی و حفره ای نانوذرات mcm–41 سنت...

Journal: :Angewandte Chemie 2023

Abstract Traditional mechanochemically controlled reversible‐deactivation radical polymerization (RDRP) utilizes ultrasound or ball milling to regenerate activators, which induce side reactions because of the high‐energy and high‐frequency stimuli. Here, we propose a facile approach for tribochemically atom transfer (tribo‐ATRP) that relies on contact‐electro‐catalysis (CEC) between titanium ox...

Journal: :Journal of the American Chemical Society 2002
Jia-Yu Wang Wei Chen An-Hua Liu Guang Lu Gang Zhang Jun-Hu Zhang Bai Yang

A promising strategy for the controlled synthesis of inorganic/polymeric nanocomposites may be sustained by fabricating cross-linked PbS nanoparticles/polymer composite thin films through combining surface-initiated atom transfer radical polymerization (ATRP) and gas/solid reaction. The introduction of Pb ions through the extension of surface-initiated ATRP to the monomers containing metal ions...

Journal: :Journal of Chemical Education 2023

This study reported the application of an interactive Open Education Resource, namely, open virtual experiment simulator education tool (OVESET), in teaching kinetics atom transfer radical polymerization (ATRP) a polymer science classroom. The OVESET ATRP kinetic aims at improving students’ inductive reasoning skills. Students were encouraged to perform experiments systematically examine influe...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید