《第10讲英文科技论文写作-microsoft-word-文档》由会员分享，可在线阅读，更多相关《第10讲英文科技论文写作-microsoft-word-文档（21页珍藏版）》请在金锄头文库上搜索。
1、英文学术论文的写作一 TitleTitle 通常为名词性词组短语一般可分为以下几类:1 以研究内容命名SYSTHESIS OF 2-O-PROTECTED GLYCEROL DERIVATIVESRing-Opening Polymerization of Cyclic Carbonates by Alcohol-Acid Catalyst2 以研究对象命名A New, Crystalline High Melting Bis(hydroxymethyl)polycarbonate and Its Acetone Ketal forBiomaterial ApplicationsMicrodo
2、main structure in polylactide-block-poly(ethylene oxide) copolymer films3 以研究内容研究对象综合命名Poly(ethylene carbonate)s, part I: Syntheses and structural effects in biodegradationHydrolytic degradation of tyrosine-derived polycarbonates, a class of new biomaterials. Part I:Study of model compounds二 Abstrac
3、tAbstract 通常由以下几方面组成1.简要介绍研究背景Poly(N-isopropylacrylamide) (PNIPA) is a thermally sensitive polymeric material. PNIPAhydrogel has been widely used in many fields.2. 叙述做了哪方面的研究a.根据具体内容 通常用一般过去时被动态:Poly(1,3-trimethylene carbonate) (PTMC) was synthesized by diethylzinc-catalyzed ring-openingpolymerizati
4、on of 1,3-trimethylene carbonate. The polymer was characterized by measurementof its thermal and mechanical properties, permeability, and susceptibility to hydrolytic chainscission in vitro and in vivo.In addition to the initiator, reaction time, temperature, and monomer/initiator (M/I) ratiowere va
5、ried.Reactivities of six-membered cyclic carbonates were studied and a carbonate-modified acrylicpolymer was synthesized, which was expected to show good water resistance.The effect of polymer chemistry on adhesion, proliferation, and morphology of human articularcartilage (HAC) was evaluated.In ord
6、er to study the degradation mechanism of these polycarbonates in more detail, a series ofsmall model compounds were designed that mimic the repeat unit of the polymer.Tyrosine-PEG derived poly(ether carbonate)s were prepared by condensation copolymerizationwith phosgene. Chemical structure and purit
7、y were confirmed by NMR and FTIR spectralanalysis.The mechanism of decarboxylation was discussed from the viewpoint of Based on the symmetrical structure of these products, a mechanism for chain initiation and wasproposed.b.根据具体内容 有时要用一般现在时或其它The novel convergent growth approach to topological macro
8、molecules based on dendriticfragment is described.In present paper plasma methods are discussed with respect to other techniques which alsoinduce micropatterned cell growth.c.也有少部分用主动态Our study focused on the role of poly(ethylene glycol) (PEG) in actively regulating thebiological responsiveness of
9、protein-adsorbed biomaterials. To this end, we designedPEG-variant biomaterials from a family of tyrosine/PEG-derived polycarbonate to presentsurfaces ranging from low to intermediate levels of PEG concentration, We analyzed theeffect of PEG concentration on the amount, conformation and bioactivityW
10、e have investigated the ability of these dendrimers to function as an effective delivery systemThis paper describes the synthesis and evaluation of biodegradable derivatives ofpoly-L-glutamic acid as suitable vectors for gene therapy.3. 阐明得到了哪些主要结论时态根据具体情况而定These results strongly suggest that the cy
11、clic carbonates are activated by trifluoroacetic acid.Et2Zn/ethylene glycol was found to be exceptionally effective as a catalyst for thiscopolymerization.Surprisingly, the biodegradation of PECs having Mws is strongly suppressed.The concentrations of the monomers formed in the depolymerizations wel
12、l agreed with theequilibrium monomer concentrations in the anionic ring-opening polymerizations.The highest poly(TMC) molecular weight was obtained by conducing the polymerization at 55Increasing the water content resulted in enhanced polymerization rates and decreasedmolecular weights.The dimension
13、 and surface area of the devices influenced the initial degradation rate, but did notsignificantly affect the overall rate of degradation.A carbonate-modified acrylic polymer showed excellent hydrolysis resistanceThe dendritic polymer seems to be a promising carrier for the controlled release of ant
14、itumordrugs.The properties of these polymers depend upon the ratio of monomers and.Our results demonstrate that low levels of PEG can regulate not only on the extent but also theconformation and specific bioactivity of adsorbed model proteinOur studies also indicatedthat the rate of cell migration w
15、as inversely correlated with PEG concentration over a narrowrange of PEG concentration.Results obtained from the use of these model compounds suggested that the backbone carbonatebond is hydrolyzed at a faster rate than the pendent chain ester bond.The results from this study can be used to explain the degradation behavior of thecorresponding polycarbonates as well as their degradation mechanisms. Introduction时态根据具体内容而定Introduction 通常由以下几方面组成1. 介绍研究背景 研究意义Spiro orthocarbonates (SOCs) undergo double ring-opening polymerization with an expansion involume 1-4.
