Copolymerazaion of N-vinyl-2-pyrrolidon with Acrylic Acid and Methylmethacrylate

Rana R. Hamza; Mahmoud A. Al-Issa; Redha I. Al-Bayati

doi:10.21123/bsj.2014.11.1.123-127

Details

Publication Date

Sun Mar 02 2014

Journal Name

Baghdad Science Journal

Volume

11

Issue Number

1

DOI

10.21123/bsj.2014.11.1.123-127

Choose Citation Style

Statistics

View publication

6

Statistics

Copolymerazaion of N-vinyl-2-pyrrolidon with Acrylic Acid and Methylmethacrylate

n-vinyl-2-pyrrolidon

acrylic acid

methymethacrylate

copolymerization

reactivity ratio.

Rana R. Hamza

Mahmoud A. Al-Issa

Redha I. Al-Bayati

...Show More Authors

Low conversion copolymerization of N-vinyl-2-pyrrolidon M.W = (111.14) VP (monomer-1) has been conducted with acrylic acid AA and methymethacrylate MMA in ethanol at 70ºC , using Benzoyl peroxide BPO as initiator . The copolymer composition has been determined by elemental analysis. The monomer reactivity ratios have been calculated by the Kelen-Tudos and Finman-Ross graphical procedures . The derived reactivity ratios (r1 , r2 ) are : (0.51 , 4.85) for (VP / AA ) systems and (0.34 , 7.58) for (VP , MMA) systems , and found the reactivity ratios of the monomer AA , MMA is mor than the monomer VP in the copolymerization of (VP / AA) and (VP /MMA) systems respectly . The reactivity ratios values were used for microstructures calculation.

View Publication Preview PDF

Quick Preview PDF

Publication Date

Thu May 01 2025

Journal Name

Process Safety And Environmental Protection

Electromembrane extraction of Cadmium (II) using a novel design of electrochemical cell with a flat sheet supported liquid membrane

Noor R.

Hussain M.

Ali H.

...Show More Authors

View Publication

(2)

(3)

Publication Date

Wed Jan 01 2014

Journal Name

International Journal Of Medical Physics, Clinical Engineering And Radiation Oncology

The Use of Left Ventricular Myocardial Stiffness Index as a Predictor of Myocardial Performance in Patients with Systemic Hypertension

Left Ventricular Stiffness

Systemic Hypertension

Muataz F.

Asia H.

Samar I.

...Show More Authors

Our aim was to investigate the changes in the myocardium stiffness index for patients suffering from systemic hypertension, and to assess their left ventricular performance. We studied 263 hypertensive patients and 166 healthy subjects as a control group. By using conventional Doppler echocardiography, the following parameters were measured—Left ventricular end diastolic diameter, left ventricular end systolic diameter, transmitral early velocity, isovolumic relaxation time, and isovolumic contraction time. Tissue Doppler imaging (TDI) was used in the measurements of the early mitral annular velocity (Ea) and the diastolic stiffness was obtained by calculating the ratio E\Ea\LVIDd. Index myocardial performance (IMP) was calculated

View Publication

(3)

Publication Date

Wed Feb 01 2017

Journal Name

Iosr Journal Of Pharmacy And Biological Sciences

Role of Diffusion Weighted MRI in Evaluation of Urinary Bladder Cancer in Iraqi Patient in Correlation with Histopathological Grade.

Dr. Khaleel Ibraheem Mohson

Dr. Mohammed Bassil Ismail,

Dr. Sura Tami Abduljabbar ,

...Show More Authors

View Publication

Publication Date

Fri Dec 01 2017

Journal Name

Bulletin Of The Iraq Natural History Museum (p-issn: 1017-8678 , E-issn: 2311-9799)

SEASONAL POPULATION ABUNDANCE OF THE CHRYSANTHEMUM APHIDS (HOMOPTERA, APHIDIDAE) IN THE MIDDLE OF IRAQ WITH PICTORIAL KEY TO SPECIES

Aphid key

Chrysanthemum

Hemiptera

Iraq

Hayder B.

...Show More Authors

This study was based on the determination of aphid species that infested Chrysanthemum sp. (Asterales, Asteraceae) in the middle of Iraq; five aphid species belong to subfamily Aphidinae were recorded: Aphis fabae Scopoli, 1763, Aphis gossypii Glover, 1877, Coloradoa rufomaculata (Wilson, 1908), Macrosiphoniella sanborni (Gillette, 1908) and Myzus persicae (Sulzer, 1776). A. gossypii was the most dominant species throughout the study period while M. persicae is the lesser species.

A summary of the main taxonomic characters is presented here and a pictorial key which was designed to separate aphi

View Publication Preview PDF

(3)

(2)

Publication Date

Wed Aug 31 2022

Journal Name

Journal Of Positive School Psychology

Impact Of An Educational Program For Nursing Management About Care Of Children Treated With VP Shunt In Mosul City

raghda

Adraa

...Show More Authors

Publication Date

Thu Jun 30 2011

Journal Name

Al-kindy College Medical Journal

Inhibitory Effect of Aqueous Salvia officinalis’s leaves in the Growth of Candida albicans from Infected Women with Vaginal Candidiasis

Antifungal activity

Candida albicans

Nystatin

Salvia officinalis

Vaginal candidiasis

Rusul Mohammad

Israa Mohammad

...Show More Authors

Background: Salvia officinalis is a plant belong to
Labiatae family .The common name of Salvia is sage
which mean save. The leaves of Salvia have special
oil which is effective against filamentous fungi and
yeasts such as Candida albicans which is the
causative agent of vaginal candidiasis in women
Methods. Cultures from 50 swabs of Candida
albicans isolated from vagina of 70 patient women
who complains from vaginal problems, their ages
(24-43) years from Central City Hospital during
Febreoury 2009 to April 2009 were cultured on
Sabouraud Dextrose Agar (SDA) .Nystatin was used
as positive reference standard to determine the
sensitivity of this fungus . and less this concentration
there was no min

View Publication Preview PDF

Publication Date

Tue Feb 17 2026

Journal Name

Journal Of Studies And Researches Of Sport Education

The effect of using the educational bag on the level of learning some offensive skills with the epee weapon

The effect of using the educational bag on the level of learning some offensive skills with the epee weaponDr. Lamia Hassan Al-Diwan

D. Fatima Abdel-Maliki

Dr. Kholoud Laith Abdel Karim2005 Technical and technological development has been increasing day after day and has included all areas of life

including the educational process

which has benefited from technologies such as (computer

video

and pictorial models) in introducing them as tools to aid the learning process. Educational packages have proven their effectiveness in education as they prepare learners with different areas of experience. Sensory audio-visual

through which the learner acquires different educational experiences through interaction

practice

participation

and communication with the data of the surrounding environment through the diversity of knowledge sources that suit his inclinations and needs. The research aimed to prepare an educational bag to teach some offensive skills in the epee weapon. And to find out the effect of using the proposed educational bag on the level of learning some offensive skills in the epee weapon. We hypothesized that the proposed educational package has a positive impact on the level of learning some offensive skills with the epee weapon. There were statistically significant differences in testing the level of learning some offensive skills with the epee weapon between the post-tests of the experimental and control groups

and in favor of the experimental group. The researchers used the experimental method to suit the nature of solving the research problem

and the research sample was chosen intentionally from the girls’ fencing club players (beginners) in the governorate. Basra for the year 2005. The number of players was (16)

which represented the entire study population. The experiment was conducted in the sports hall of the South Oil Sports Club in Basra. We concluded that the educational package has a positive impact on the level of learning some offensive skills in the epee weapon. There were statistically significant differences in the learning level test for some offensive skills in the epee weapon between the experimental group and the control group in the post-tests and in favor of the experimental group. We recommended the necessity of using the proposed educational curriculum to learn some offensive skills in the epee weapon in fencing lessons or in sports clubs. Adopting modern techniques in training

teaching or teaching fencing skills and searching for new methods. Conducting similar studies on other skills or different samples.Keywords: educational bag

offensive skills with an epee weapon

fencing game. Teaching methods. Basra Girl Sports ClubLamya Hassan Aldewan [email protected] of Basra - College of Education and Sports Scienceshttps://orcid.org/0000-0003-0377-6915 Keywords educational bag

offensive skills with an epee weapon

fencing game. Teaching methods. Basra Girl Sports Club

‏Lamyaa

Fatima

...Show More Authors

View Publication

Publication Date

Sun Jun 05 2016

Journal Name

Baghdad Science Journal

A novel online coupling of ion selective electrode with the flow injection system for the determination of vitamin B1

"Flow injection analysis

ion selective electrode

vitaminB1 determination

pharmaceutical preparation"

Issam M.A.

Bashaer Abbas

...Show More Authors

A simple, fast, selective of a new flow injection analysis method coupled with potentiometric detection was used to determine vitamin B1 in pharmaceutical formulations via the prepared new selective membranes. Two electrodes were constructed for the determination of vitamin B1 based on the ion-pair vitamin B1-phosphotungestic acid (B1-PTA) in a poly (vinyl chloride) supported with a plasticized di-butyl phthalate (DBPH) and di-butyl phosphate (DBP). Applications of these ion selective electrodes for the determination of vitamin B1 in the pharmaceutical preparations for batch and flow injection systems were described. The ion selective membrane exhibited a near-Nernstian slope values 56.88 and 58.53 mV / decade, with the linear dy

View Publication Preview PDF

(3)

Publication Date

Thu Jun 15 2023

Journal Name

Alustath Journal For Human And Social Sciences

The Effectiveness of a Cognitive-Behavioral Treatment Program to Reduce Nervous Fatigue for Mothers of Children with Cerebral Palsy

efficacy treatment program

cognitive-behavioral therapy

nervous fatigue

cerebral palsy

Assist. Prof. Dr. Rana Abd Almonem Kareem AL abasi

...Show More Authors

Cognitive-behavioral therapy is one of the most important relatively recent; treatment programs that attempt to modify behavior and control psychological disorders by modifying the individual's thinking style and awareness of himself and his environment, and cognitive reconstruction by replacing negative thoughts with positive ones. The current study aimed to know the effectiveness of a cognitive behavioral treatment program in reducing nervous fatigue among mothers of children with cerebral palsy. The sample on which the nervous fatigue scale was applied consisted of (30) mothers whose son suffers from cerebral palsy, and the results indicated that (24) mothers suffer from nervous fatigue. This sample was divided

View Publication Preview PDF

Publication Date

Wed Dec 14 2016

Journal Name

Journal Of Baghdad College Of Dentistry

Comparison of the Marginal Fitness of the Ceramic Crowns Fabricated with Different CAD/CAM Systems (An In Vitro Study)

Akram M.

Adel F.

...Show More Authors

Background: The marginal fit is the most characteristic that closely related to the longevity or success of a restoration, which is absolutely affected by the fabrication technique. The objective of present in vitro study was to evaluate the effect of four different CAD/CAM systems on the marginal fit of lithiÂµm disilicate all ceramic crowns. Materials and Methods: Adentoform tooth of a right mandibular first molar was prepared to receive all ceramic crown restoration with deep chamfer finishing line (1mm) and axial reduction convergence angle of 6 degree, dentoform model duplicated to have Nickel-ChromiÂµm master die. Thirty two stone dies produce from master die and distributed randomly in to four groups (8 dies for each group) accor

View Publication Preview PDF

(7)

1 2 ... 436 437 438 439 ... 2801 2802