Trihydroxyethyl isocyanuricate(THEIC) using as initiator,trifunctionality glycidyl azide polymer(TGAP,Mn=2500~3000) with nitrogen heterocyclic ring structure was synthesized by cationic ring-opening polymerization of epichlorohydrin and azidation with NaN3.A novel azide binder glycidyl azide-b-(3-azidomethyl-3-methyl oxetane) copolymers(P(GA-b-AMMO)) were synthesized by polymerization of 3-azidomethyl-3-methyloxetane(AMMO),using TGAP as a macromolecular initiator,and its structures were characterized by Flourier transform infrared spectroscopy(FTIR),nuclear magnetic resonance(1H NMR and 13C NMR) and gel permeation chromatograph(GPC).The effect of polymerization temperature and ratio of materials on the polymerization were investigated.The appropriate polymerization conditions were as fllow: n(BF3·OEt2)/n(TGAP)/n(AMMO)=1.35/1/12~16,the polymerization temperature was 0-3 ℃.The results show that the polymerization is controllable in this appropriate polymerization conditions.The total yield of polymers are above 80.0%,functionality ≥ 2.70 and Mn(4000~4400) are closed to theoretical value corresponding.The mechanical test indicated that P(GA-b-AMMO) had better mechanical property compared with TGAP homopolymer.The mechanical strength of P(GA-b-AMMO) /IPDI is 2.04 MPa.The elongation could reach 261%(20 ℃),which is about three times as much as TGAP/IPDI.

The solubility parameter of 1,5-diazido-3-nitrazapentane ( DIANP) was estimated by group contribution method and determined by turbidity titration method.The solubility of DIANP in different solvents was studied.Results show that the estimated values are in accordance with the determined ones.The solubility parameter of DIANP is determined as 22.29 (J/mL)1/2.The solubility of DIANP in different solvents follows the"“better miscibility with similar solubility parameter”"principle.

含能热塑性弹性体（ ETPE ）可分为线型 ETPE （LETPE）和星型ETPE（SETPE）［1-4］。与组分相同、分子量相似的LETPE相比，SETPE具有许多独特的优点，如较低的熔融指数和熔体粘度，加工性能和力学性能均较好，能允许添加更多的固体填料等［3-4］。由此可见SETPE在先进含能材料的研制上极具应用潜力。本实验以单官能度聚3，3-双叠氮甲基氧丁环（UPBAMO，Mn ＝5133）为硬段［5］，三官能度聚叠氮缩水甘油醚（TGAP， Mn ＝2850）为软段［6］，2，4-甲苯二异氰酸酯（2，4-TDI）为偶联剂，通过官能团预聚体偶联法合成出了一种未见文献报道的PBAMO／TGAP基An B星型ETPE（ SETPE）。合成路线见Scheme 1。

<正>1引言新型战术武器的发展对含能材料提出了高能、钝感和低特征信号的要求。为了适应这种要求,在研的军用粘合剂大都显示出了从惰性粘合剂到含能热固性粘合剂再到含能热塑性弹性体(ETPE)的研究趋势。ETPE是指侧基上含有—N3,—ONO2,—NO2等能量基团的热塑性弹性体,以ETPE为基的含能材料

The hydroxyl-terminated poly 3-nitratomethyl-3-methyloxetane(PNMMO) was obtained by 3-nitratomethyl-3-methyloxetane(NMMO) through cationic ring-opening polymerization using 1,4-butanediol(BDO) as initiator,boron trifluoride ether complex(BF3·OEt2) as catalyst and dichloromethane(CH2Cl2) as solvent.Then the terminal hydroxyl groups of PNMMO were nitrated by using nitric acid/acetic anhydride to obtain nitrato-terminated poly 3-nitratomethyl-3-methyloxetane(NTPNMMO) oligomer plasticizer.The structure and performance of NTPNMMO were characterized by using IR,13C-NMR and DSC.The results show that glass transition temperature of NTPNMMO is –45.32 ℃,its thermal decomposition peak temperature is 213.47 ℃,and it has good application prospect as energetic plasticizer.

In order to improve ablation resistance of solid propellant coating layer,the isocyanurate-modified polyurethane elastomer(IMPUE) used in adhesion system of solid propellant coating layer was designed and synthesized by using hydroxyl-terminated carbon nitrogen heterocyclic chlorinated polyether polyol and modified liquid 4,4'-diphenylmethane diisocyanate(L-MDI) as main raw materials.The results show that IMPUE has good mechanical properties.Compared to conventional polyurethane elastomer,its thermal properties,flame retardancy and ablation resistance can significantly increase.Therefor,it is a kind of polyurethane elastomer with excellent properties.The thermal decomposition studies show that the isocyanurate ring in IMPUE structure obviously changes the thermal decomposition course of polyurethane and efficiently improves the thermal stability of IMPUE.

The current status for the research and application of polyurethane in solid propellant coating layer at home and abroad is reviewed. The structures and characteristics of polyurethanes are analyzed. The current existing problems of polyurethane coating layer are discussed, and the development direction of polyurethane coating layer is proposed.

Using 2-p-nitrobenzy-loxycarbonylmethoxyimino-3-oxo-butyric acid,sulfuryl chloride as base material,under the certain conditions,(Z or E)-4-chloro-2-p-nitrobenzyloxy-carbonyl-methoxyimino-3-oxo-butyric acid was synthesized.Its chemical structure was characterized by IR and 1H NMR.The better technology has been obtaind as follows ∶the mole ratio of n(2-p-nitrobenzy-loxycarbonylmethoxyimino-3-oxo-butyric acid) ∶n(sulfuryl chloride)=1 ∶1.4,reaction time is 5~ 6 h at 50~55 ℃.After finish reaction system dispose of the technology pH is 6.5±0.1,the separating effect reach over 99%,the yield of the product is 24% and 48%,the purity is all 98%.

An aqueous fire-proof coating is prepared by using silicone-acrylate resin emulsion and aqueous melamine resin as base materials,pentaerythritol and maize starch as carbon formers,melamine phosphate and highly polymerized ammonium polyphosphate as catalysts and melamine as foaming agent.The test has shown that the properties of coating film formed at 110～120℃are satisfactory for fire-proof glass fiber products.

A low-free methanal melamine resin was synthesized using melamine,methanal,methanol and hydrogen peroxide as material.The factors effecting on free methanal were studied.The results showed that the mass percent of free methanal in melamine resin synthesized by using dewatering process was 0.04% under a definite condition.The condition was as follows:n(methanal) ∶n(melamine)=6,n(unreacted methanal) ∶n(H2O2)=1 ∶1.1,methylolation 60 min,60~65 ℃.

通过2,4-二硝基咪唑（2,4-DNI）钠盐的水溶液与硫酸铜的水溶液反应,制备出2,4-二硝基咪唑铜配合物;采用自然挥发法培养出了适于X光结构测定的单晶,X射线衍射测定结果显示,晶体属三斜晶系,空间群为P-1,晶体学参数为:a=7.2560（10）×10-1nm,b=7.762（2）×10-1nm,c=16.685（3）×10-1nm,α=87.13（3）°,β=83.81（3）°,γ=62.25（3）°,V=826.8（3）×10-3nm3,Z=2,Dc=1.871 g.cm-3,μ=1.411 mm-1,F（000）=470,最终偏离因子R为0.0388。根据红外光谱、元素分析和X射线衍射分析结果,确定2,4-二硝基咪唑铜配合物的化学组成为C6H10CuN8O13;分子结构式为[Cu（DNI）2（H2O）2].3H2O。

This paper describes a new idea on condenstion reaction principle of dicyanodiamide and formal dehyde according to manufacture of lubricant G for glass fiber, and the synthetic technology and the application are discussed.

利用对硝基苯胺增敏的Luminol-HRP-H2O2化学发光反应不断产生自由基中间体的机理,通过血清中抗氧化剂对自由基的清除作用,测定血清抑制化学发光的时间来评价血清的抗氧化能力.对40个血清样品分析表明:男性血清抗氧化能力稍大于女性.

报道一种新型的电流变材料,即以聚萘醌为固体粒子,溴代二苯甲烷为基础液体的聚合物型电流变流体.讨论了合成的工艺条件,并着重就电流变效应的影响因素作了初步探讨.结果表明:温度,固体粒子浓度和电场强度对电流变流体的剪切应力有不同的影响.