نتایج جستجو برای: terpolymer

تعداد نتایج: 357  

2009
VISHAL PATHAK

The present paper deals with the synthesis of terpolymer films of MMA-STY-AN and their physical properties were studied. The films were translucent, brittle and light yellow in colour. The films were found water permeable. The films were soluble in most of non polar solvents. The softening range of alloy films was found in between 89–119 0C. The specific conductance of terpolymer films was foun...

2014
Adriana Cristina Motta Eliana Aparecida de Rezende Duek

Terpolymers of L-lactide, D,L-lactide and trimethylene carbonate (TMC) were synthesized via the ring-opening polymerization reaction for cyclic monomers using stannous octoate as the initiator at a ratio of ~0.05 mol% (monomers/(SnOct) 2 ). Synthesis was done at 130 °C for 48 h. The inclusion of TMC, an aliphatic elastomeric polycarbonate, alongside polymer chain segments containing L-lactide a...

2013
Anton Bonartsev Sergey Yakovlev Arasha Boskhomdzhiev Irina Zharkova Dmitrii Bagrov Vera Myshkina Tatiana Mahina Elena Kharitonova Olga Samsonova Anton Zernov Vsevolod Zhuikov Yurii Efremov Vera Voinova Garina Bonartseva Konstantin Shaitan

The copolymerization of poly(3-hydroxybutyrate) (PHB) is a promising trend in bioengineering to improve biomedical properties, e.g. biocompatibility, of this biodegradable polymer. We used strain Azotobacter chroococcum 7B, an effective producer of PHB, for biosynthesis of not only homopolymer and its main copolymer, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHB-HV), but also novel terpolym...

2017
Guang Yang Jie Wang Dan Li Shaobing Zhou

Biodegradable amphiphilic poly (ethylene glycol) (PEG) based ether-anhydride terpolymer, consisting of PEG, 1, 3-bis (p-carboxyphenoxy) propane (CPP) and sebacic acid (SA), namely PEG-CPP-SA terpolymer, was employed to self-assemble into micelles by adding water into a solution of the terpolymer in tetrahydrofuran (THF). The shape of polyanhydride micelles can be regulated by simply adjusting t...

Journal: :Catalysis Science & Technology 2023

One pot process solvent free terpolymerization highly block terpolymer.

2003
M. K. Crawford W. B. Farnham A. E. Feiring

We have developed a family of 157 nm resists that utilize fluorinated terpolymer resins composed of 1) tetrafluoroethylene (TFE), 2) a norbornene fluoroalcohol (NBFOH), and 3) t-butyl acrylate (t-BA). TFE incorporation reduces optical absorbance at 157 nm, while the presence of a norbornene functionalized with hexafluoroisopropanol groups contributes to aqueous base (developer) solubility and e...

In this study, stable lattices of terpolymer butyl acrylate, methyl methacrylate, and styrene were synthesized by a mini-emulsion polymerization technique using tert-butyl hydroperoxide TBHP/Fe2 /ethylenediaminetetraacetic acid/sodium formaldehyde sulfoxylate redox initiators at room temperature, and the kinetics of the reaction were studied. The reaction rate was obtained from periodic samplin...

Journal: :Soft matter 2017
Sander Kommeren J Dongmo C W M Bastiaansen

Switchable surface structures based on hydrogels are an emerging field in material science, microfluidics, soft robotics and anti-fouling. Here, we describe a novel method that uses a photo-cross-linkable terpolymer to create a hydrogel coating with a switchable surface structure. The terpolymer is based on poly(N-isopropylacrylamide) (PNIPAm) and it is shown that simple coating technologies li...

2017
Alison J. Scott Niousha Kazemi

The complete error-in-variables-model (EVM) framework, consisting of both design of experiments and parameter estimation stages, is applied to the terpolymerization of 2-acrylamido-2-methylpropane sulfonic acid (AMPS, M1), acrylamide (AAm, M2) and acrylic acid (AAc, M3). This water-soluble terpolymer has potential for applications in enhanced oil recovery, but the associated terpolymerization k...

Journal: :Cumhuriyet Science Journal 2022

The blending effect of poly maleic anhydride-styrene-methyl methacrylate (MA-St-MMA) terpolymer on non-miscible PVC and Polystyrene was studied depending their thermomechanical properties. Depending the amount synthesized used compatibilizer tensile strength, modulus, properties blends are enhanced. unmodified with small amounts exhibit two-step degradation whereas those containing 6, 8 10 perc...

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