vr$N KHOA HQC VA CONG NGHe VIeT NAMTap chi H6a hoc, T. 44, s6 5 - 2006

MVC Ll)CCONTENTS

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Tinh toan cau hinh toi uu cua lap hidrotalxit gan Cl bang plnrong phap ly thuyet ham 531mat de.Optimal configuration calcuation of hydrotacite layer with cr by density functionaltheory.

Dang Ung V¢n, Nguyen H9a Mi, Nguyen Thi Lan, Vii Hoai Nam

2 Lam giau urani bang phuong phap cong ket voi Fe(OH)3 va toi Uti hoa cho phan tich 536uram.Concentration of uranium by co-precipitation with Fe(OH)3 and optimization ofconditions for uranium analysis.

Phung Vii Phong, Cao Hung Thai, Lam Ngoc Thiem

3 Anh huang cua ham hrong cao su clobutyl den sir khau mach quang cua he cao su 541butadien/c1obutyl.

Influence of the content of chlorobutyl rubber on the photocorsslinking of thebutadiene/chlorobutyl system.

Nguyen. Thi vt« Trieu, t.e Thi Lan Oanh, t.e Xuan Hien

4 Ki~m chirng cac phuong trinh Debye-Huckel xac dinh he so hoat dQ cua ion trong cac 546moi tnrong moi dua tren thuat roan hoi quy phi tuyen.Evaluation on Debye-Huckel equations for the determination of activity coefficientsof ions in the salt mediums by non-linear regression algorithm.

Vuong Thi Minh Chdu, Di)ng Ung Van

5 Vai tro cua C3H6hap phu bat thuan nghich voi hoat tinh khir NO, boi C3HSkhi co mat 552oxi tren xuc tic Cu/ZSM-5.The role of the irreversiblely absorbed amount of ~~ (C3~irr) with the catalystactivity in the reduction of NO, on the catalyst Cu/ZSM-5.

u Thanh Son, t-s«Van Nhdn

6 Anh huang cua nong dQ chat hoat dong M mat dodecylsunfat den kha nang bao ve 556chong an man cua mang polypyrol.

. Influence of dodecylsuflate surfactant substance concentration on protection againstcorrosiion of polypyrrole film.

Nguyln tt« t.e Hien, Dinh tt« Mai Thanh

7 Nghien ciru sir dung polyuretan tai che dung cho son bao ve chong an man cho thep 561

cacbon.Corrosion protection of carbon steel using recycling polyurethane foam.

Bui Trdn Luong, Truong Hoai Nam, Trink Anh True

8 Nghien ciru cau tnic va mot so tinh chat cua vat lieu compozit 566poly(vinylclorua)/nancolay.Investigation structure of some properties of the poly(viny1chloride)/nanoclaycomposite.

Thcii Hoang, Nguyen Th{}c Kim, Do Quang Thdm, Phan Quang Thai,Nguyen Thi Thanh Huang

9 Chiet neodim va ytri bang triphenylphosphin ox it CfPPO) tir moi tnrong axit nitric. 571Extraction neodymium and yttrium by triphenylphosphin oxide in nitric acid.

Luu Minh Dai, Dao Ngoc Nhiem

10 Nghien ciru che tao mang mong NiOxHy tren nen kim loai titan va niken bang phirong 574phap sol-gel co mat axit nitric.Study on preparation NiOxHy thin film on titan and nickel metal by sol-gel methodwith citric acid.

Trinli Xudn Sen, Truong Thi Thdo

11 Danh gia tac dong cua phu gia PaNi den kha nang hoat h6a dien cue tich thoat hidro 579goc LaNis.Evaluation of PaNi additive effect of electrochemical activation of LaNi, basednegative electrode.

t.e Xudn Que: DoTra Huang, U6ng Van Vy

12 T6ng hop mullit va compo zit mullit-cordierit tir cao lanh A Luoi, Thira-Thien-Hue. 585Synthesis of mullite ceramics and composites mullite-cordierite from Kaolin A Luoi,Thua -Thien -Hue.

Trdn Ngoc Tuyen, Phan Van Tuang, Ng6 Sy Luong

13 Anh huang cua thai gian va nhiet d¢ den hieu qua iic che an mon thep cacbon cua 592natri nitrit trong dung dich mroc trung tinh.Effect of immersion time and temperature on the carbon steel corrosion inhibitionefficiency by sodium nitrite in neutral and alkaline watersolutions,

Vii Dinh Huy, Dang M(zu Chien, u tt« Ly

14 Dac diem cua qua trlnh chiet cua nguyen tot dat hiem Sm, Gd, Dy, Y voi tac nhan 598chiet PC88A.Features of extraction process of rare earth elements Gd, Sm, Dy, Y with PC88Aextractant.u Bd Thu(zn, Do Ngoc Lien, Nguyen Van tuu, Nguyen Duc Vuong, Pham Duc Roan

15 T6ng hop mot vai hop chat azon dan xuat cua 4-(2-amino-3,4-metilendioxyphenyl)-3- 604mety lfuroxan.

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Synthesis of some azo compoundsmethylendioxyphenyl)-3-methylfuroxan.

derived from 4-(2-amino-3,4-

Nguyen Hiiu DTnh, Dao Thi Bich Hc;mh

16 So sanh kha nang phan huy natri 2,4-dicIophenoxiaxetat tren xiic tac quang Ti02 voi 608anh sang nr ngoai.Comparison of photodegradation of sodium 2,4-dichlorophenoxyaceate over Ti02suspended and UV light.

Nguyen. Thi Dung, Pham Phat Tan, Nguyen Truong Duy

17 SI! citt diit lien ket clo va nhom imin cua phAm nhuom hoat tinh bang oxi hoa quang 614xiic tac theo quan diem hoa h9C hrong nr.Breaking of chlorine bond and group imine of reactive dyes by the photocatalyticoxidation from quantum theory.

Bui Thanh Huang, Nguyen Hiiu Huy Phuc, Nguyen Thanh Hong

18 'Nghien cuu tach tnrc tiep vonfram khoi molypden bang ky thuat trao d6i cation trong 620moi tnrong mroc-axeton.Investigation of direct separation of tungsten from molybdenum by cation-exchangetechnique in the water-aceton medium.

Lam Ngoc Thu, Dong Kim Loan, Trdn Hong Can

19 Nang cao hoat tinh xuc tac va dQ ben cua ziconi sunfat co chtra nhom. 626Improved stability and catalytic activity of mesostructured sulfated zirconia byaluminum promoter.

Ngo Thi Thudn, Pham Xudn Nui

20 Cac he s6 nrong tac noi trong mo hinh nhiet dong cua hon hop bat dong nhat. 632Internal interaction factor in thermodynamic model fro heterogeneous mixture.

Nguyen Xudn Quang, U Anh Tudn, Quach Dang Trieu

21 Nghien ciru tong hop va tinh uc che an mon kim loai cua mot s6 f3-aminoxeton tir R- 638benzylidenailine va axetophenon.

Study on synthesis and metallic corrosion inhibition properties of some f3-aminoketonesfrom R-benzylidenealinies and acetophenone.

Ddng NhuT(li, Nguyen Dinh Thanh, Trinh Thi Minh Nguyet

22 anh huang cua nhiet dQ b~ ma toi qua trinh ma hoa h9C Cu len nen acrylon nitril 642butadien (ABS) tren nen khong dan.Effect of bath temperature for Cu electro less deposition onto acrylon nitril butadiene(ABS) insulating substrate.

Mai Thanh Tung, Lai Huy Nam

23 Xu ly phan huy cac hop chat hiru CCf chira brom trong moi tnrong mroc bang birc xa 648gamma.

Decomposition of brominated organic compounds in environment water by y-rayirradiation.

Hoang Hoa Mai, M. Taguchi, T. Kojima

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24 Mot axit momordic moi tir re cay gac Viet Nam. 654A new momoric acid from the root of Vietnamese Momordica cochinchinensis ..

Nguyln Trung Phong, Nguyen Thanh Hong, Nguyln Ngoc Hanh, Nguyen Thi Minh

25 T6ng hop va khao sat tinh chat tIC che an mon kim loai cua mot s6 azometin tir cac 660anilin the va p-nitrobenzandehit.

Synthesis and investigation of metallic corrosion inhibition of some azomethines fromsubstituted anilines and p-nitrobenzaldehyde.

Dang Nhu Tai, Nguyen Dinh Thanh, Pham Van Tan

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