环己醇脱氢CuO/ZnO/Al_2O_3催化剂的制备及性能

研究了用于环己醇脱氢生产环己酮的ＣｕＯ／ＺｎＯ／Ａｌ２Ｏ３催化剂的制备及性能，采用ＢＥＴ、ＤＴＡ、ＸＲＤ对催化剂结构如比表面、孔结构、晶相组成及晶粒大小进行了表征，并对结构与催化剂的制备和性能间的关系进行了研究。     

PBT/粘土纳米复合材料的制备和性能表征

通过插层聚合的方法制备了ＰＢＴ／粘土纳米复合材料，用ＷＡＸＤ、ＤＳＣ、ＰＬＭ等手段研究了其结构与结晶行为，并与纯ＰＢＴ的性能及结构进行了比较。通过测试其力学性能及耐水解性研究了粘土对ＰＢＴ树脂性能的影响。结果表明通过插层聚合制犁纳米ＰＢＴ树脂的性能比树脂有很多优点，为拓宽ＰＢＴ的应用范围开辟了一条新的途径。     

专利快递

Ｚ９９５４６　松香基分子晶体，聚烯烃树脂用成核剂与聚烯烃树脂组合物及其模塑件　本发明提供一种由以下的组分Ａ和组分Ｂ形成的松香基分子晶体：组分Ａ：脱氢枞酸或含有脱氢枞酸作为主要组分的松香基树脂酸组分Ｂ：至少一种选自由所述组分Ａ的锂盐、钠盐和钾盐组分的组中的松香基树脂酸碱金属盐，一种包含松香基分子晶体的聚烯烃成核剂，一种包含成核剂以及如果需要而采用的一种钙化合物的聚烯烃树脂组合物，以及一种由聚烯烃树脂组合物模塑而得到的模塑件。Ｚ９９５４７　吸收性材料的制备方法　它包括提供含水量大于约４０％的未打碎和…     

MBS与CPE协同增韧AS树脂研究

研究了ＡＳ／ＭＢＳ／ＣＰＥ共混体系性能与组成比，形态结构的关系，结果表明，对于ＡＳ树脂，ＭＢＳ与ＣＰＥ之间存在较强的协同增韧效应，当ＭＢＳ与ＣＰＥ之比为１：１时，此协同效应最佳。     

AS／MBS／NBR共混体系研究

本文研究了ＡＳ／ＭＢＳ／ＮＢＲ共混体系的性能与组成比，形态结构的关系；考察了ＭＢＳ及ＮＢＲ牌号，成型加工温度对共混物性能的影响。结果表明，对于ＡＳ树脂，ＭＢＳ与ＮＢＲ之间存在强烈的同增韧效应，当总弹性体含量为３０％时，ＭＢＳ与ＮＢＲ配比在１／１１－１／１如此宽的范围内，共混物均具有优异的冲击韧性，且变化不大，其数值在６８７－７１３Ｊ／ｍ之间；共混物同时具有良好的综合性能。     

增韧SMA的制备及与PC的共混改性

研究了ＳＢＳ增韧ＳＭＡ树脂体系,采用二次共混工艺,用１５％（质量）的ＳＢＳ可以很好地增韧ＳＭＡ树脂;用增韧的ＳＭＡ树脂与ＰＣ进行共混,考察了体系的力学性能和微观相结构,制备出综合力学性能良好、加工性能优于纯ＰＣ的共混材料。当增韧ＳＭＡ／ＰＣ为２０／８０时,共混材料的力学性能与纯ＰＣ相近,达到了预期改性ＰＣ的目的。     

丙烯酸乳液聚合物裂解色谱／质谱研究

采用裂解色谱／质谱－计算机联用技术，对聚丙烯酸丁酯，丙烯酸丁酯／苯乙烯共聚物，丙烯酸丁酯／醋酸乙烯共聚物三种乳液聚合物的热裂解产物进行了分析，其特征裂解碎片被检测，质谱定性一可靠。结果表明，由于三种聚合物的组成和结构不同，其裂解机理亦不相同。ＰＢＡ，ＰＢＡ／Ｓｔ以解聚机理裂解，其主要特征裂解产物是聚合单体；而ＰＢＡ／ＶＡ以断袭机理裂解，主要特征解产物为醋酸，苯，苯甲酸丁酯等，裂解产物中的二，三...     

中国合成树脂及塑料文摘

ＡＮＳ填充母料的研制及应用／郑振英（福建师范大学科研处）／工程塑料应用。１９９８，２６（８）：１９～２１。对ＡＮＳ填充材料的筛选及表面处理、载体树脂的选择、填充母料的配方及生产工艺等进行了讨论。结果表明，用偶联剂对填料进行表面处理效果良好，载体树脂采用复合型材料会产生互补作用。ＡＢＳ／透门石复合材料的研究／高歌（吉林大学化学系）／高分子材料科学与工程。１９９８，１４（４）：１１４～１１６。研究了ＡＮＳ／透门石（ＴＳ）短纤维复合材料，运用ＴＢＡ、ＳＥＭ等多种表征手段对材料的力学性能、密度、转变行为…     

SBS／MMA—BA接技贴塑胶的研究

本文选用ＭＭＡ和ＢＡ为接枝单体，对ＳＢＳ进行溶液接枝共聚改性，并配合增粘树脂制备了贴塑胶。探讨了单体用量、引发剂用量和反庆温度对接枝共聚反应的影响。并用红外光谱验证了接枝共聚物的存在，阐述了溶剂和增粘树脂的选用原则。试验结果表明，该胶对纸／ＢＯＰＰ的复合具有良好的粘接强度。     

SMPAH在PA6／ABS合金中的相容化作用研究

采用（苯乙烯／马来酸酐）共聚物（ＳＭＡＨ）作相容剂，通过熔融共混制备了ＰＡ６／ＡＢＳ合金。对三种牌号ＡＢＳ树脂进行了选择，通过不同ＳＭＡＨ含量的ＰＡ６／ＡＢＳ合金的力学性能、熔体流动速度、动态力学性能，以及微观结构剖析，分析了ＳＭＡＨ的相容化机理。     

Transparent poly(methyl methacrylate‐co‐butyl acrylate) nanofibers

Nanofibers of n‐Butyl Acrylate/Methyl Methacrylate copolymer [P(BA‐co‐MMA)] were produced by electrospinning in this study. P(BA‐co‐MMA) was synthesized by emulsion polymerization. The structural and thermal properties of copolymers and electrospun P(BA‐co‐MMA) nanofibers were analyzed using Fourier transform infrared spectroscopy–Attenuated total reflectance (FTIR–ATR), Nuclear magnetic spectroscopy (NMR), and Differential scanning calorimetry (DSC). FTIR–ATR spectra and NMR spectrum revealed that BA and MMA had effectively participated in polymerization. The morphology of the resulting nanofibers was investigated by scanning electron microscopy, indicating that the diameters of P(BA‐co‐MMA) nanofibers were strongly dependent on the polymer solution dielectric constant, and concentration of solution and flow rate. Homogeneous electrospun P(BA‐co‐MMA) fibers as small as 390 ± 30 nm were successfully produced. The dielectric properties of polymer solution strongly affected the diameter and morphology of electrospun polymer fibers. The bending instability of the electrospinning jet increased with higher dielectric constant. The charges inside the polymer jet tended to repel each other so as to stretch and reduce the diameter of the polymer fibers by the presence of high dielectric environment of the solvent. The extent to which the choice of solvent affects the nanofiber characteristics were well illustrated in the electrospinning of [P(BA‐co‐MMA)] from solvents and mixed solvents. Nanofiber mats showed relatively high hydrophobicity with intrinsic water contact angle up to 120°. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 4264–4272, 2013     

A molecularly imprinted polymer via a salicylaldiminato‐based cobalt(III) complex: A highly selective solid‐phase extractant for anionic reactive dyes

A novel molecularly imprinted polymer based on tert‐butyl acrylate (MIP‐BA) was fabricated with the assistance of a cobalt(III)‐based catalyst bearing an N‐salicylidene isopropylamine ligand [(SPA)₂CoCl]. After initiation with methyl aluminoxane, the catalyst system was found to be active toward the polymerization of tert‐butyl acrylate (t‐BA) in the presence of a polar template (Cibacron reactive red dye) and divinylbenzene (DVB) as a crosslinker. Polymerization experiments, including those of t‐BA, t‐BA, and DVB and t‐BA and dye, were also carried out. Isolated blank polymers and MIP‐BA were analyzed with a variety of techniques, including differential scanning calorimetry, thermogravimetric analysis, gel permeation chromatography, infrared spectroscopy, nuclear magnetic resonance, and ultraviolet–visible spectroscopy. In general, the complex showed moderate polymerization activity and produced high‐molar‐mass poly(tert‐butyl acrylate); however, a decrease in the monomer conversion was observed upon the addition of the dye and/or the crosslinker. The effect of imprinting was obvious when the adsorption capacity of MIP‐BA measured at pH 6 for red dye (the imprinted molecule) was increased from 9.2 to 90.4 mg/g after imprinting. Competitive adsorption studies revealed that the dye‐imprinted polymer enabled the efficient uptake of red dye, even in the presence of blue and yellow dyes that had similar chemical structures to the imprinted molecule. The selectivity coefficients were 43 and 36 with respect to the blue and yellow dyes, respectively. The proposed polymerization procedure could be extended to other anionic polar reactive dyes and polar reactive polymers. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010     

Preparation and comparative evaluation of well-defined fluorinated acrylic copolymer latex and solution for ancient stone protection

In this work the well-defined fluorinated acrylic copolymer latex and solution were prepared by the radical initiated seed emulsion polymerization and solution polymerization, respectively, using the same monomers of dodecafluoroheptyl methacrylate (DFHM), butyl acrylate (BA) and methyl methylacrylate (MMA). The copolymer latex BA/MMA/DFHM was designed as core–shell structure and the copolymer solution poly(BA–MMA–DFHM) was structured with low molecular weight. The chemical and morphology structures as well as the film properties obtained from latex and solution were analyzed and compared by spectroscopic techniques (FT-IR and NMR), transmission electron microscopy (TEM), differential scanning calorimetry (DSC), gel permeation chromatography (GPC), scanning electron microscopy coupled with energy-dispersive X-ray detector (SEM–EDX) and static contact angles (CAs) instrument. Moreover, the BA/MMA/DFHM latex and poly(BA–MMA–DFHM) solution (with 29 wt% of DFHM) were applied onto two kinds of sandstone samples by capillary absorption, and their preliminary protecting efficiency was evaluated. It is demonstrated that the comprehensive performances of BA/MMA/DFHM latex films were quite comparable to those of poly(BA–MMA–DFHM) solution cast films, the latter exhibited a better protective performance.     

Synthesis,characterization, and properties of flexible magnetic nanocomposites of cobalt ferrite–polybenzoxazine–linear low‐density polyethylene

A simple method for the preparation of magnetic nanocomposites consisting of cobalt ferrite (CF; CoFe₂O₄) nanoparticles, polybenzoxazine (PB), linear low‐density polyethylene (LLDPE), and linear low‐density polyethylene‐g‐maleic anhydride (LgM) is described. The composites were prepared by the formation of benzoxazine (BA)–CF nanopowders followed by melt blending with LLDPE and the thermal curing of BA. The composites were characterized by X‐ray diffraction, thermogravimetric analysis, differential scanning calorimetry, scanning electron microscopy, universal testing machine measurement, and vibrating sample magnetometry. The composites consisting of LLDPE, PB, and LgM (47.5L–47.5PB–5LgM) exhibited a higher tensile strength (23.82 MPa) than pure LLDPE and a greater elongation at break (6.11%) than pure PB. The tensile strength of the composites decreased from 19.92 to 18.55 MPa with increasing CF loading (from 14.25 to 33.25 wt %). The saturation magnetization of the composites containing 33.25 wt % CF was 18.28 emu/g, and it decreased with decreasing amount of CF in the composite. The composite films exhibited mechanical flexibility and magnetic properties. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013     

Flammability and thermomechanical properties of dianhydride‐modified polybenzoxazine composites reinforced with carbon fiber

Composites based on carbon fiber (CF) and benzoxazine (BA‐a) modified with PMDA were investigated. The flammability of the carbon fiber composites was examined by limiting oxygen index (LOI) and UL‐94 vertical tests. The LOI values increased from 26.0 for the CF/poly(BA‐a) composite to 49.5 for the CF‐reinforced BA‐a/PMDA composites as thin as 1.0 mm and the CF‐reinforced BA‐a/PMDA composites were also achieved the maximum V‐0 fire resistant classification. Moreover, the incorporation of the PMDA into poly(BA‐a) matrix significantly enhanced the T_g and the storage modulus (E') values of the CF‐reinforced BA‐a/PMDA composites rather than those of the CF/poly(BA‐a). The T_g values and storage moduli of the obtained CF‐reinforced BA‐a/PMDA composites were found to have relatively high value up to 237°C and 46 GPa, respectively. The CF‐reinforced BA‐a/PMDA composites exhibited relatively high degradation temperature up to 498°C and substantial enhancement in char yield with a value of up to 82%, which are somewhat higher compared to those of the CF/poly(BA‐a) composite, i.e., 405°C and 75.7%, respectively. Therefore, due to the improvement in flame retardant, mechanical and thermal properties, the obtained CF‐reinforced BA‐a/PMDA composites exhibited high potential applications in advanced composite materials that required mechanical integrity and self‐extinguishing property. POLYM. COMPOS., 34:2067–2075, 2013. © 2013 Society of Plastics Engineers     

苯甲酸型低共熔溶剂吸收一氧化氮的性能研究

低共熔溶剂（DESs）已被广泛研究并应用于酸性气体的吸收,本研究发现苯甲酸类DESs能够可逆高效地吸收一氧化氮（NO）。以苯甲酸（BA）、硫脲、尿素和咪唑为氢键供体（HBD）,以离子液体为氢键受体（HBA）制备了一系列的DESs。吸收NO的实验结果表明,以氯化四丁基膦（P₄₄₄₄Cl）为HBA和以BA为HBD的DESs表现出较高的NO吸收速率和饱和吸收量。BA/P₄₄₄₄Cl (1∶2) DES在101.3 kPa、303.15 K下,NO吸收量为2.75 mol/mol。热重测试和再生实验的结果表明,BA/P₄₄₄₄Cl (1∶2) DES具有理想的热稳定性和重复使用性。通过FTIR、¹H NMR和高斯模拟计算,探讨了BA/P₄₄₄₄Cl (1∶2) DES对NO的吸收机理,发现NO与BA的含氢氧原子之间存在化学相互作用,且BA的易去质子化性质有利于NO的吸收。     

双马来酰亚胺树脂基高介电材料的制备及性能研究

采用原位聚合法将石墨和CaCu3Ti4O12(CCTO)与双马来酰亚胺树脂(BMI)、二烯丙基双酚A(BA)复合制备石墨/BMI/BA和CCTO/BA/BMI高介电复合材料。研究了石墨和CCTO含量对复合材料的介电性能的影响,结果表明,石墨含量的增加提高了材料的介电常数和介电损耗,在石墨含量约为11.975%时出现渗流效应,介电损耗增长较大,但最大值仍小于1。CCTO含量的增加也提高了材料的介电常数和介电损耗,材料的介电常数最大时为纯BMI/BA树脂的19倍;而介电损耗较小,最大值小于0.08。     

A phosphorus‐containing phenolic derivative and its application in benzoxazine resins: Curing behavior,thermal, and flammability properties

In this work, flame‐retardant benzoxazine resins were prepared by copolymerization of bisphenol A based benzoxazine (BA‐a) and a phosphorous‐containing phenolic derivative (DOPO‐HPM). The curing behavior, thermal stability, and flame resistance of BA‐a/DOPO‐HPM composites were studied by differential scanning calorimeter (DSC), thermogravimetric analysis (TGA), limited oxygen index (LOI) measurement, UL94 test, and cone calorimeter. The DSC results indicated that DOPO‐HPM catalyzed the curing reaction because of its acidity. The TGA results revealed that the BA‐a/DOPO‐HPM thermosets possessed higher decomposition temperatures (T_5%) and char yields than that of BA‐a. The combustion tests indicated that the flame retardant properties of BA‐a/DOPO‐HPM thermosets were enhanced. The BA‐a/DOPO‐HPM‐20 sample acquired the highest LOI value of 32.6% and UL94 V‐0 rating. Moreover, the average of heat release rate (av‐HRR), peak of heat release rate (pk‐HRR), average of effective heat of combustion (av‐EHC) and total heat release (THR) of BA‐a/DOPO‐HPM‐20 were decreased by 24.6%, 53.1%, 14.9%, and 22.1%, respectively, compared with BA‐a. The attractive performance of BA‐a/DOPO‐HPM blends was attributed to the molecular structure of DOPO‐HPM composed of DOPO group with excellent flame‐retardant effect and phenolic hydroxyl group with catalysis. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133, 43403.     

SBS／MMA／BA／MAA四元接枝共聚及其产物粘接性能

研究了SBS与甲基丙烯酸（MAA）和甲基丙烯酸甲酯（MMA）,丙烯酸丁酯（BA）的四元接枝共聚,探讨了MMA／BA质量比,MMA与BPO用量,反应时间,反应温度及固化时间对粘接性能的影响,并将该四元接枝胶的性能与三元胶和SBS／MMA／BA／AA四元胶进行了比较,结果发现：该四元胶对聚烯烃的粘接强度及室温固化性能优于SBS／MMA／BA三元胶,尤其与异氰酸酯配合使用时,其效果更佳,而且该四元胶的粘接强度,耐水及耐热性能均优于SBS／MMA／BA／AA四元胶。     

VC／BA共混物增容PVC／HDPE共混体系的研究

采用氯乙烯—丙烯酸丁酯(VC/BA)共混物作为聚氯乙烯(PVC)/高密度聚乙烯(HDPE)共混物的增容剂,通过冲击实验、拉仲实验、动态力学分析,系统地研究了共混体系性能与其结构之间的关系。通过Brabender流变仪测定了VC/BA共混物增容PVC/HDPE共混体系的流变性能。结果表明,VC/BA共混物是PVC/HDPE共混体系的良好增容剂。在一定范围内,VC/BA共混物与HDPE对PVC有协同增韧效应。vC/BA和HDPE的加入改善了PVC的塑化和流变性能