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双语推荐:聚乙二醇二丙烯酸酯

聚偏氟乙烯基聚合物是锂离子电池用聚合物电解质较理想的基质材料,但也存在结晶度高、亲液性差等问题。主要综述了采用γ射线、电子束、紫外等辐射,原子转移自由基聚合及溶液接枝聚合等方法接枝苯乙烯、甲基丙烯酸缩水甘油酯、新戊二丙烯酸酯、聚甲基丙烯酸甲酯、三丙烯乙醇醚醋酸酯、聚乙二醇甲基丙烯酸酯、2-丙烯酰胺基-2-甲基丙磺酸、聚乙二醇等对聚偏氟乙烯基聚合物电解质的改性研究进展。接枝改性后的聚偏氟乙烯聚合物电解质对电解液的亲和性、离子电导率、电化学稳定性和循环性能都有一定程度的提高。
PVDF based polymers are ideal matrix materials for lithium ion battery electrolyte,but high crystal-linity and poor affinity to liquid electrolyte restrict their further development.In this paper,the grafting modifi-cation of PVDF based polymer electrolytes with styrene,glycidyl methacrylate,dimethyltrimethylene glycol di-acrylate,polymethyl methacrylate,tripropyleneglycol diacrylate,polyethylene glycol methacrylate,2-acrylam-ide-2-methyl propane sulfonic acid and polyethylene glycol by radiation,atom transfer radical polymerization and solution graft polymerization are introduced.In a certain extent,the affinity to liquid electrolyte,ionic con-ductivity,electrochemical stability and cycle performance have been enhanced.

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醇十八烷基醚和甲基丙烯酰氯为原料,采用醇钠.酰氯法合成了醇十八烷基醚单甲基丙烯酸酯(DEGOEMA),并利用自由基聚合得到聚(醇十八烷基醚单甲基丙烯酸酯)(PDEGOEMA).采用凝胶渗透色谱(GPC)分析测试了PDEGOEMA的分子量和分子量分布.通过傅里叶变换红外光谱(FTIR)、核磁共振氢谱(1HNMR)、差示扫描量热(DSC)、热重(TG)和X射线衍射(XRD)对DEGOEMA和PDEGOEMA的结构、相变行为、热稳定性和晶体结构进行了研究.结果表明,这种新型单体及其聚合物是一种具有稳定的结构、良好的结晶性能、高相变焓及良好热稳定性的相变材料.PDEGOEMA的起始吸热温度为41℃,起始放热温度为36℃,热焓为73J/g,在314℃以下热稳定性良好,可用于加工或使用温度较高的环境.
Diethylene glycol octadecyl ether methacrylate ( DEGOEMA ) as a phase change material was prepared by means of acrylation of diethylene glycol octadecyl ether sodium ( C18 E2 Na ) with methacryloyl chloride. And then poly( diethylene glycol octadecyl ether methacrylate) ( PDEGOEMA) was synthesized by free radical polymerization. The molecular weight and its distribution were characterized using gel permeation chromatography( GPC) . The structure, phase change properties, thermal stablility, crystal structure of the monomer and the comb-like polymer were characterized using Fourier transform infrared spectroscopy( FTIR) , hydrogen nuclear magnetic resonance spectrum(1H NMR), differential scanning calorimetry(DSC), thermo-gravimetric analysis( TG) and wide-angle X-ray diffraction( XRD) . The results show that the novel monomer and polymers are excellent phase change materials with steady structure, high crystallinity, higher heat enthal-py and thermal stablility. Both the melting and cry
采用不同相对分子质量的聚乙二醇( PEG-200、400、600)分别与六亚甲基异氰酸酯( HDI)反应合成预聚体,再以此预聚体对纳米SiO2进行表面接枝改性,制备了聚氨酯改性纳米SiO2;将改性纳米SiO2分散到聚氨酯丙烯酸酯( PUA)中光固化制备了PUA/SiO2纳米杂化涂层。讨论了PEG相对分子质量对PUA/SiO2纳米杂化涂层的耐热性能和力学性能的影响,并以FT-IR、差示扫描量热法( DSC)等进行表征。结果表明,改性后的纳米SiO2粒子优化了PUA树脂的性能,且以PEG-400与HDI合成的预聚体来改性纳米SiO2用于制备的PUA/SiO2纳米杂化涂层具有较好的耐热性和抗冲击性。
In this paper,firstly,nanosilica was prepared by sol-gel method,and the low molecular weight isocy-anate-terminated polyurethane prepolymer was synthesized by the reaction of hexamethylene diisocyanate ( HDI ) with different molecular weight polyethyleneglycol(PEG 200,400 and 600). Then,the prepolymer was grafted onto the surface of nanosilica to obtain polyurethane-modified nanosilica. Finally, the modified nanosilica was dispersed into polyurethane acrylate( PUA) , which was then cured by UV light to achieve nanohybrid coatings. The structure of modified nanosilica was characterized by FT-IR. Thermodynamic and mechanical properties of curing materials were investigated by differential scanning calorimetry ( DSC) ,pendulum damping tester and film impactor, respec-tively. The results indicated that the property of coating prepared by nanosilica was optimized by nanosilica, and the nanosilica was modified by PEG-400 and HDI possessed better property of heat resistance and impact resist-

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以异佛尔酮-异氰酸酯(IPDI)、聚四氢呋喃1000(PTMEG-1000)、聚乙二醇400(PEG-400)、甲基丙烯酸-β-羟乙酯(HEMA)为基本原料,合成了一类丙烯酸酯类聚氨酯大单体,然后用偶氮异丁腈(AIBN)引发大单体聚合制备了一种高透明性的耐候性聚氨酯(PU)材料.利用FT-IR,XRD对所制备的PU材料进行表征和分析;通过冷冻和紫外光老化处理实验,研究了PU材料的耐候性.结果表明,PTMEG-1000含量的增加能显著提高PU材料的光学性能和热稳定性,PU材料在冷冻和紫外光照射条件下,综合性能与常温下相差不大,表明其具有良好的耐候性.其中PU-3材料的综合性能较佳,其常温下透光率为92.1%,拉伸强度为13.1 MPa;在-26℃下透光率为84.7%,拉伸强度为15.7 MPa;经紫外光辐射后其透光率为74.3%,拉伸强度为11.5 MPa.
Poly(urethane-methacrylate)macromonomers were synthesized based on isophorone diisocyanate (IPDI),poly (tetrahydrofuran ) 1000 (PTMEG-1000 ),poly (ethylene glycol )400 (PEG-400 ) andβ-hydroxyethyl methacrylate (HEMA).Then high transparent poly(urethane-methacrylate)materials with weathering resistance were prepared by the polymerization of the macromonomers using 2,2-azo-bis-iso-bu-tyro-nitrile (AIBN)as initiator.The obtained PU materials were characterized by FT-IR and XRD.The weathering resistance of PU materials was characterized under the condition of freezing and UV-irradiation. The results showed that the thermal stability and optical performance of PU materials increased with increasing PTMEG-1000 content,and comprehensive performance in freezing and UV-irradiation conditions were almost the same results as at room temperature,which indicated the materials owned good weather-ability.PU-3 exhibited outstanding performance.The tensile strength and the transmittance of P

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将三氟甲烷磺酸锂(LiCF3SO3)、碳酸丙烯酯(PC)、聚乙二醇二丙烯酸酯(PEGDA)以及2,2-甲氧基-2-苯基苯乙酮(DMPAP)混匀后,采用紫外光固化法制备高分子透明凝胶电解质.其中,LiCF3SO3、PC、PEGDA和DMPAP的加入量是影响凝胶电解质电导率的四个主要因素,各因素分别设置5个水平,采用L25(54)正交设计进行试验,以凝胶电解质的电导率作为考察指标.通过极差分析,得出影响电导率的因素顺序为LiCF3SO3>PC>PEGDA>DMPAP,制备试验中LiCF3SO3、PC和PEGDA的最佳质量比为0.3∶3∶1.采用紫外-可见光谱仪、XRD、四探针电导率测定仪分别对凝胶电解质的光透过率、结晶程度和电导率进行了表征.结果表明,所制备的凝胶电解质具有较高的可见光透过率和电导率.通过在水中浸泡及外界自然环境下放置试验,测试表明所制得的凝胶电解质的稳定性较好.
After lithium trifluoromethane sulfonate ( LiCF3 SO3 ) ,propylene carbonate ( PC ) , polyethylene glycol diacrylate (PEGDA ) and 2 ,2-dimethoxy-2-phenylacetophenone (DMPAP) were uniformly mixed ,polymer gel electrolyte was prepared by UV curing of the photopolymerizable electrolyte mixture .Based on L25 (54 ) orthogonal test ,the four main factors influencing the conductivity of gel electrolyte ,such as the addition amount of LiCF3SO3 ,PC ,PEGDA and DMPAP ,were investigated .Each factor was tested at 5 levels .The analysis of range showed that the importance of factors effected on the conductivity were LiCF3SO3 > PC > PEGDA > DMPA The optimum mass ratio of LiCF3 SO3 ,PC and PEGDA was determined as 0 .3:3:1 .P .The visible light transmittance ,crystallization degree and conductivity of gel electrolyte were studied by using UV-vis spectrophotometer ,XRD and four-point probe instrument ,respectively .The results indicated that the prepared gel electrolyte had high visible light

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以含氢硅油(PHMS)和1,6-己二丙烯酸酯(HDDA)为原料,通过硅氢加成反应合成了含酯基的有机硅增粘剂(PHMS-g—HDDA),并将其用于加成型液体硅橡胶(LSR)。采用傅立叶变换红外光谱(FT—IR)及核磁共振波谱(1HNMR)对PHMS—g—HDDA的结构进行了表征;研究了PHMS-g-HDDA用量对LSR的黏度、力学性能、硫化特性及与聚碳酸酯、对苯甲酸乙醇酯及热塑性聚氨酯粘接性能的影响。结果表明,PHMS—g—HDDA可显著提高LSR的粘接性能,且对LSR的黏度、力学性能和硫化特性有明显影响。当PHMS—g—HDDA用量为0.9份时,硅橡胶的综合性能较为理想。此时硅橡胶的拉伸强度为5.3MPa、拉断伸长率为380%、撕裂强度为14.7kN/m、邵尔A硬度为47.6度;焦烧时间及正硫化时间最小,分别为51S和68S;与各种基材的粘接性良好。
A novel ester group containing silicone adhesive promoter , PHMS-g-HDDA, was synthesized by grafting 1,6-hexanediol diacrylate ( HDDA) onto poly ( hydridomethylsiloxane ) ( PHMS) via hydrosilyla-tion.The chemical structure of PHMS-g-HDDA was characterized by Fourier transform infrared spectroscopy ( FT-IR) and 1 H nuclear magnetic resonance spectroscopy ( 1 H-NMR) .The effect of the PHMS-g-HDDA con-tent on the adhesive performance between addition-cure liquid silicone rubber ( LSR ) and polycarbonate(PC), poly (ethylene terephthalate) (PET), thermoplastic polyurethane (TPU) was investigated.Moreo-ver, the effect of the PHMS-g-HDDA content on the viscosity , mechanical properties and curing characteristics of the ALSR was also studied .Results showed that PHMS-g-HDDA could remarkably impact on the perform-ance and viscosity of adhesive , mechanical and curing properties of the ALSR .The comprehensive properties of ALSR were optimized when the content of PHMS-g-HDDA was 0.9 phr , the sil

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使用新型元致孔剂聚乙二醇(PEG)/甲醇,以 N,N-甲基-N-甲基丙烯酰胺基丙基-N,N-甲基-N-丙烷磺酸内盐(SPP)为单体,季戊四醇三丙烯酸酯(PETA)为交联剂,偶氮异丁腈(AIBN)为引发剂,通过原位聚合法制备磺酸甜菜碱型两性离子亲水毛细管整体柱。对各反应物的配比进行了优化。结果表明,当单体与致孔剂的质量比为1:2.5,并且致孔剂中 PEG 与甲醇的质量比为1:2,单体内部 SPP 与 PETA 的质量比为1:1,AIBN 为总质量的0.1%时为最优配比;PEG /甲醇元致孔剂的加入实现了对整体柱内部孔径大小的调节,得到了结构更为均一,渗透性、机械稳定性良好的毛细管整体柱,并且理论塔板数与传统制备方法相比有显著提高,在毛细管液相色谱模式下最高可达2.4×10^5塔板/ m。将制备的整体柱应用于毛细管液相色谱和加压毛细管电色谱分离酚类、核苷类等极性小分子混合物,得到了很好的分离效果。
Sulfobetaine-based capillary zwitterionic hydrophilic monolithic columns were syn-thesized with a novel binary porogenic agent of polyethylene glycol(PEG)/ methanol. The poly-mer was prepared with( 3-( metharyloylamino)propyl)dimethyl( 3-sulfopropyl)ammonium hydroxide inner salt( SPP)as monomer,pentaerythritol triacrylate( PETA)as crosslinker, and azobisisobutyronitrile(AIBN)as initiator. In order to optimize the properties,the contents of the polymerization mixture were investigated. The optimum preparation conditions were as follows:the mass ratio of monomer and porogenator = 1 :2. 5;the mass ratio of SPP and PETA =1 :1 in the monomer;the mass ratio of PEG and methanol = 2 :1 in the binary porogenic agent;the content of the initiator( AIBN)= 0. 1% ( m / m). With the binary porogenic agent of PEG /methanol addition,good mechanical stability,homogeneous column bed,good permeability and narrow pore size distribution were obtained. In the capillary liquid chromatography mode, the hydroph
聚乙二醇为高分子骨架,分别通过酰氯化反应和迈克尔加成反应,将丙烯酸酯基团和多巴胺基团接到聚乙二醇端基,使得聚乙二醇丙烯酸酯-多巴胺体系既具有光聚合性能,又具有良好的粘接性能,1以及优异的生物相容性。利用FT-IR、 H-NMR对其结构进行了表征。得到的聚乙二醇-多巴胺体系(PEG-Dopas)具有较好的粘接强度,放置24 h后其粘接强度会从0.90 MPa增加到1.62 MPa。PEG-Dopas的细胞贴附性好,对细胞的生物毒性较小。
In this study, a bioadhesive containing of poly(ethylene glycol) polymer skeleton, acrylate groups and dopamine groups was synthesized by using esterification and michael addition reaction. The bioadhesive has photopolymerizability,good bonding capacity and excellent biocompatibility. Its chemical structure was confirmed by RT-1IR and H-NMR. The adhesive strength of poly(ethylene glycol)-dopamine (PEG-Dopas) was improved from 0.90 MPa to 1.62 MPa after standing for 24 h. This kind of bioadhesive has excellent cell attachment and low cytotoxicity.

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以羟基功能化的聚酯为引发剂,引发对氧环己酮的开环聚合制备以聚酯为核、聚对氧环己酮为臂的星形聚合物.星形聚合物经溴化后,引发聚乙二醇甲基丙烯酸酯的原子转移自由基聚合(ATRP)合成以聚对氧环己酮-b-聚甲基丙烯酸聚乙二醇酯为臂的星形聚合物,并经红外测试表明聚合物已成功合成.这种星形聚合物含有聚对氧环己酮和聚甲基丙烯酸聚乙二醇酯,是一种水溶性聚合物.
Hydroxyl Functional polyester initiators initiated the ring-opening polymerization of PDO and the star-shaped polymer with PDO arms using polyester as nuclear was produced. The bromide of star-shaped polymer, initiated the atom transfer radical polymerization(ATRP) of polyethylene glycol methacrylate and the star-shaped polymer containing the arms of ppdo-b-poly methacrylic acid polyethylene glycolester was synthesized, and the characterization of polymer structure was investigated by infrared spectroscopy and the results showed that the polymer has been successfully synthesized. The star-shaped polymer is one of aqueous soluble polymer for PPDO and PEG.

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用天然壳聚糖接枝环氧聚乙二醇单甲醚和丙烯酰氯制备了大分子单体,采用核磁共振对合成单体进行了分析表征。合成的单体在光引发条件下制备了壳聚糖类大分子单体/聚乙二醇丙烯酸酯(PEGDA)复合水凝胶,研究了接枝度对该凝胶溶胀度、粘弹性、失重率的影响,电镜扫描对合成单体和水凝胶形态进行了表征。结果表明:壳聚糖上环氧聚乙二醇单甲醚和丙烯酰氯接枝率分别为16%和15%,所制备的复合水凝胶随着丙烯酰氯接枝度的提高,溶胀度、失重率逐渐降低。
A novel amphiphilic chitosan derivate,acryloyl-PEG-chitosan was synthesisized by ring-open reaction and homogeneous reaction. 1 H-NMR was performed to characterize the macromonomer. Which showed that the de-gree of grafting values of mPEG and acryloyl was obtained,16% and 15%, respectively. The acryloyl-PEG-chi-tosan/PEGDA composite hydrogel was prepared by photo initiator,this paper studied the grafting degree of acryloyl affect swelling rate,viscoelasticity,rate of weight loss of the hydrogel. The results showed the prepared composite hydrogel with the improvement of the degree of grafting of acryloyl chloride,swelling,weight loss rate decreased.

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