TRUNG TAM KHOA Hoe TV'NHIEN vA eONG NGH~ Quae GJATap chi Hoa hoc, T. 40, so 4 - 2002

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Thong bao ngflJ1: G-hidroxvcrinnmidin tLI'than hanh cay Trinh nu' hoang cung(Crimun latijolium L).

Short communication: 6-hydroxycrinamidine from the bulds of Crinuni latifoliumL..

Ngllyell COlIg Hao, Le Tiel} Diiug, Ngllyell Ng(JC Suong

2 Thu hoi uran ILl'mroc th,'li bang nhua trao deli ion bazo manh. 3Recovery of uranium from wastewater by strongly basic anion exchange resin.

Phull Dtnt, Tua«. Ta/.:.i Tomihiro, Ph~I/1I V(/n Thiem, Ngllyell Min/I Tllye'n

3 Nghien CU'ucacbon h6a soi day a nhict do thap. 7

II - Tac dong CLlClcac tac nhan h6a hoc den SU' hinh thanh cac tfnh chat be mat cuasoi day cacbon h6a.Study on the lower temperature carbonization of jute fibre.H - Effect of chem ical agents on the formation of surface properties of carbonizedjute fibre.

Phon Ng(JC Hoa , Ngllyell Thanh Hong, 811i Trung

4 Khao s,lt thanh ph.in Iignan cua cac loai Phyllanthus thuoc ho Thau dau I J(Euphorbiacca).1- Xac dinh lignan trong cay Ch6 de (P/IY//Ullf/III.1 niruri], rhu khring virut in-vivo.Investigation of lignan composition in genus Phyllanthus of Euphorbiacea family.I - Determination of lignans in the plant Pltyl lantluts uiruri, in-vivo antiviral assays.

Ngllr/n Tluinh lIong, Ngllyen Ngoc Hauh. Ngllyell Qllal1g Trung,Phon Ngoc Theillh, Trdll Thi Hlle

5 Cac hop chat iridiot va iridoit glycosit tLI' r~ cay Sinh dia (Rehniannia gl utlnosa 17Libosch).The iridois and iridoid glycosid from the Rehmanuia glutinosa Rhizome.

Ngllyen Thi 11()(lng /vnh. Triln \/(/n Sung, Ludger Wessjo/wlIlI. Guenter Adam

6 Co che phan irng phan huy H202 duoc XLlC tac boi plurc cua mangan voi 23et ylcndiarn in.Mechanism of hydrogen peroxide decomposition catalyzed by Mn-cornplex withet hylcned iamine.

Tn/II Thi Minh Ngllyel, Ngllyell Villi XII.Vell

7 Chc' UIO va nghicn CU'LILl'llgdung c.ic mang xuc rac Cjuang hoa Ti02. 27Study on the application of some membrane containing Ti02 photocatalyst.

TUIII Tlli /)I('C, Le tt., HO(li Nam, 811i Tiell Dllng, PIlling Thi XII(/n Bt'nh,108 NgIIJ/n XII(/II Nguyen, Ph.nn CI}(/II T/1I1.v

8 M9t so diftc tnrng trong qua trinh dieu che xiic tac vanadi oxit!Ti02 bang phuong 32phap LCD.Characterization of vanadium oxide/TfO, catalyst preparing by LCD method.

N g6 Th[ Thu(ln, Trdn Th[ Van Thi

9 So sanh tinh chat xuc tac cua perovskit LaCo03 khoi va perovskit LaCo03 phan tan 35tren chat mang oxit silic mao quan trung binh trong phan irng oxi hoa hoan toanmetan.A comparison of catalytic activities between bulk and mesoporous silica supportedLaCo03 perovskite for total oxidation of methane.

Nguyen Vi¢t Son, Nguyen Hiiu Phu

10 Khao sat anh huang cua cau tnic b6 mat xiic tac den phan irng xiic tac di th~ bang phirong 43phap me phong.Study on the influence of the surfatial structure on the heterogeneous catalyticreaction by simulation method.

U Kim Long, Lam Ngoc Thiem, va Hung Sinh

11 Thir ket hop phuong phap dong luc phan tiXvoi hoa lirong tir nghien ciru cac phan img 48dong phan hoa.Testing of combination between molecular dynamics and quantum chemistry forisomerization reaction study.

Dting Ung V (1l1

12 Tinh chat cua polyme blend cao su/nhua nhiet deo. 53

I - M9t phirong phap tiep can moi d~ nghien CU'u dong hoc hru hoa blend cao suoProperties of plymer blend from styrene-butadiene rubber and polyvinyl chlorideres 111.

I - A new approach to the kinetic study of rubber blends,Le Anh Tudn

13 Nghien cuu cac phirc da-ligan trong he Ho(III)-4-(2-pyridilazo)-rezocxin (PAR)-axit 57axetic va cac dfrn xuat clo cua no bang phuong phap trac quang.

Study on the multi-ligand complexes in the system H03+-4-(2-pyridilazo)-resorcinol(PAR)-HX (CH3COOH, CH2CICOOH, CHCI2COOH, CCI3COOH) by spectrophoto-metric method.

Nguyin Dinh Luyen, Nguyen Hiiu Hien14 Nghien ciru che tao bot ytri oxit d9 min cao bang each ket tua plurc y-xitrat voi axit 60

oxalic.Preparation of fine yttrium oxide powder by precipitation of Y-citrate complexeswith oxalic acid.

Pham Van Tinh, Luu Minh Doi

15 T6ng hop va irng dung chat dong r{m dang adduct AED tir edenol va dietylen triamin 66(DETA) trong che tao mang tir nhira epoxy.Synthesis and application of the curing agent by adduct AED from edenol anddiethylenetriamine (DETA) to produce epoxy film.

Nguyen HiJu Nie'u, r-s» vi« ou« Huynh Th[ ca«. Nguyen Hoang Hr;t

16 Nghien ciru dong hoc cua qua trinh hap ph", uran tir dung dich mroc len silicagen. 71Kinetic study of the adsorption of uraruum from aqueous solution on silica gel.

Tra'n Hong Ha, Phan Dinh Tuan, Thai Ba Cdu , La Van Binh

17 Chat chuyen hoa chinh co hoat tinh khang sot ret cua c~y ho Sung (Ficus Jistulosa). 75

Antimalarial principles of Ficus fistulosa.

Nguyen Van Tuyen, Nguyen Van Hung, U Mai Huang, U Thi Xudn

18 M9t vai alkaloit tir Evodia sutchuenensis Dode. 79

Alkaloids from Evodia sutchuenensis Dode.Trinh Phuong Lien, r-a« Van Sung, C. Adam

19 TiO? Anatase cau true Nano. 84Phan II - Cac nguyen ciru tan xa Roughen goc nho (SAXS) va ph6 C!!,C tim (UV-Vis).Nanostructured Ti02 Anatase.Part II - SAXS and UV-Vis studies.

Trdn Trung

20 Dieu chinh TLPT bang xir Iy birc xa nharn cai thien mot so tinh chat chirc nang cua 89polyme sinh hQ~.Biopolymer molecular weight control by radiation treatment for functional propertyimprovement.

Nguyen Duy Lam, Trdn Bang Diep

21 Nghien ciru su nrong thich giila bao ve catot va lap phu hiru ca. 95

Study on the compatibility between cathodic protection and organic coatings.UThu Quy

22 Tin H9i nghi: Cong nghe Hoa dau trong the ky xx va XXI 107

News: Proceedings of refinery and petrochemical technology in the XX and XXIcenturies.

In tai Xuong in II, Xi nghiep in Trung tam Khoa hoc W nhien va Cong nghe Quoc gia.Chi S(5': 12873-ISSN 0866 -7144. In xong va n9P ltru chieu thang 12 nam 2002.

Gia: 12.000 d