富芳烃原料合成沥青树脂的研究

以菲，催化裂化油浆的富芳烃馏分和蒽油为原料，以苯甲醛为交联剂，合成沥青树脂，并考察了不同原料合成沥青树脂的反应性，应用元素分析，FT-IR，NMR等手段，初步分析了原料及沥青树脂的结构和性能，并以此为基础推测可能的反应机理，探讨了不同原料对沥青树脂的结构和性能的影响，结果表明，树脂合成反应中的反应性因原料的不同而表现各异；沥青树脂的反应机理为质子引发下的阳离子型缩聚反应。     

浅谈悬浮法VPC树脂的颗粒结构对其加工性能的影响

详细分析了PVC树脂外皮膜结构，粒径大小及分布，表观密度，孔隙率与增塑剂吸收量对树脂加工性能的影响，提出了PVC树脂的不同颗粒结构适于不同的加工方法和用途。     

聚氟乙烯树脂的结构分析

通过对两种不同牌号PVF树脂进行分析，发现PVF树脂形貌规则，呈球形；PVF树脂中氟原子存在5种不同结构；PVF树脂的熔点和熔融焓随树脂牌号不同而改变；PVF树脂热稳定性好。     

基体树脂可被增韧能力的研究

分散的橡胶微球改性环氧树脂能产生良好的增韧效果。同种弹性微球对不同的环氧体系增韧程度却有不同，这取决于基体树脂的被增韧能力，选用了３种不同的弹性体和３种不同的环氧／固化剂体系进行实验，讨论了它们的增韧机理，提出了基体树脂可被增韧能力的３个内涵：（１）基体树脂产生微裂纹的能力；（２） 基体树脂的转为温度（３）在转变温度以上基体树脂的可屈服程度。     

改性低毒脲醛树脂的固化研究

研究了非等温过程中改性低毒脲醛树脂固化体系和未改性脲醛树脂固化体系的固化行为，并研究了不同固化剂施用量对改性树脂固化的影响，对不同树脂体系固化后的结构进行了表征。结果表明，改性的UF树脂固化后的交联度大于未改性树脂固化后的交联度。     

安全玻璃夹层用PVB膜片生产工艺配方的设计

采用胶片级聚乙烯醇缩丁醛(PVB)树脂为基础树脂，选用了不同的增塑剂和助剂，制成了夹层玻璃所用的膜片，分析了工艺流程中各原材料对产品质量的影响。实验表明，PVB树脂颗粒须粒径均匀，不同用途的夹层玻璃需选用不同的增塑剂，同时进行相应生产工艺的调整，才能实现稳定连续的生产。     

离子交换树脂的磺化改性及其应用性能研究

强酸性苯乙烯系阳离子交换树脂００１×７＾＃和ＤＯ１＾＃两种树脂分别进行了深度磺化改性，研究了改性前后的各种树脂的酯化催化活性和不同温度下的热稳定性。结果发现，改性后，树脂的催化活性明显提高，在低温场合下，改性树脂的热稳定性与未改性的树脂相近，但在高温场合下，改性树脂的热稳定性明显不如未改性的树脂。     

混床树脂在不同工作条件下的再生

针对混床在不同的工作条件下阴阳树脂的再生，采取了不同的再生方法。经实验证明，不仅提高了树脂的再生程度，也减少了再生成本。     

树脂类硫化剂

丁基橡胶能用作轮胎的硫化胶囊、风胎等制品，可用辛基酚醛硫化树脂（202树脂）和溴化辛基酚醛树脂（201树脂）硫化，硫化橡胶的耐热性好，压缩变形小。山西省化工研究所优化工艺，生产不同规格的202和201树脂，以满足不同用户对不同硫化速度的需求，使用202树脂时，需加入氯化亚锡或溴化丁基橡胶等卤化物作活性剂，以提高其活性。因为201树脂已含有溴，硫化速度快，所以可不加活性剂。     

SAN树脂的相对分子质量对ABS树脂力学性学的影响

通过将三种不同相对分子质量的SAN树脂与同一种ABS接枝粉料进行熔融共混，测度共混物的力学性能，比较了三种SAN各自的增韧特性。实验结果表明：SAN树脂的相对分子质量越高，制得的ABS树脂的冲击强度和断裂伸长率越高，SAN树脂的相对分子质量对ABS 脂的拉伸强度没有影响，SAN树脂的低聚物和挥发成分对位伸强度影响大。将高相对分子质量SAN和低相对分子质量SAN按不同比例混合后，再与ABS接枝粉料以18份橡胶共混，考察了高相对分子质量SAN的加入对共混物冲击强度和熔体流体速率的影响，在SAN树脂中加入高相对分子质量SAN树脂后，可以提高ABS树脂的冲击强度，显著降低加工流动性。     

Enhancement of Phenol Biodegradation by Pseudochrobactrum sp. through Ultraviolet-Induced Mutation

The phenol-degrading efficiency of Pseudochrobactrum sp. was enhanced by ultraviolet (UV) irradiation. First, a bacterial strain, Pseudochrobactrum sp. XF1, was isolated from the activated sludge in a coking plant. It was subjected to mutation by UV radiation for 120 s and a mutant strain with higher phenol-degrading efficiency, Pseudochrobactrum sp. XF1-UV, was selected. The mutant strain XF1-UV was capable of degrading 1800 mg/L phenol completely within 48 h and had higher tolerance to hydrogen ion concentration and temperature variation than the wild type. Haldane’s kinetic model was used to fit the exponential growth data and the following kinetic parameters were obtained: μ_max = 0.092 h⁻¹, Ks = 22.517 mg/L, and Ki = 1126.725 mg/L for XF1, whereas μ_max = 0.110 h⁻¹, Ks = 23.934 mg/L, and Ki = 1579.134 mg/L for XF1-UV. Both XF1 and XF1-UV degraded phenol through the ortho-pathway; but the phenol hydroxylase activity of XF1-UV1 was higher than that of XF1, therefore, the mutant strain biodegraded phenol faster. Taken together, our results suggest that Pseudochrobactrum sp. XF1-UV could be a promising candidate for bioremediation of phenol-containing wastewaters.     

血吸虫诱尾蚴剂印迹聚合物的合成及应用研究

以本实验室制备的一种诱尾蚴剂(XF)为模板、α-甲基丙烯酸(MAA)为功能单体、改性硅胶为交联剂,用常规的本体聚合技术直接合成出粒径在80μm左右的、较均一的分子印迹聚合物。并将其与聚乙烯醇(PVA)掺杂后制膜,考察了这种膜的溶胀性以及释放XF的特点。试验证明这种膜的溶胀性在实验温度范围内随温度升高而升高,在30℃时,吸水率达到85%;膜在水中溶胀并漂浮在水的表面,缓慢释放出XF,其效率质量比在8%左右。     

甲醛灭活型间嵌合脊髓灰质炎病毒免疫原性的研究

应用基因工程重组技术构建了脊髓灰质炎型间嵌合病毒xF_(233)(I/Ⅲ型)。经浓缩、提纯及甲醛灭活3天和12天,虽然其细胞感染力已全部丧失,但仍能诱导家兔产生高效价的抗-Mahoney和抗-Leon血清中和抗体。说明xF_(233)有可能作为灭活疫苗的候选株。     

几种医用聚丙烯专用料的研究

研究了几种医用聚丙烯专用料的力学性能、流变性能、结晶特性及其熔融特性。结果表明：XF1800的屈服应力、断裂伸长率和缺口冲击强度都较SPG163、SPG164高，并在拉伸过程中表现出典型的应变硬化，而SPG163、SPG164则表现为显著的冷拉现象。XF1800的熔体流动速率最低，流动性较差，而SPG164的熔体流动速率最高，加工流动性最好。转矩流变仪测试表明三种料的平衡时间相差不大，但SPG163和SPG164相对于XF1800稍长；平衡状态下，XFl800的表观粘度最大，整个过程的加工能耗也最大，SPG164最小。瓶坯吹塑成瓶后，三种物料的晶体熔融起始温度Tmo、熔融峰温Tmp均有所上升，而晶体熔融半峰宽都大幅下降，结晶的规整性提高，结晶度也有所提高，表明瓶坯在吹塑成瓶的过程中结晶结构发生了显著的变化，可能还伴有晶型的转变。非等温结晶过程中，SPGl63和SPGl64的结晶峰宽度、结晶峰位置几乎相同，结晶温度T。(103℃)高于XF1800(98．5℃)，表明XFl800的结晶速率较慢，结晶完成的时间较长，结晶能力较差。     

黏结煤与不黏煤共热解特性研究

为了利用内构件反应器热解技术实现黏结性煤的高值化利用,采用TG-MS和固定床反应器研究了黏结的山西兴县煤(简称XX煤)与不黏的先锋褐煤(简称XF煤)共热解时的破黏和热解特性。TG-MS实验结果表明,XX煤与XF煤配制的混合煤比XX煤黏性小,且XF煤促进了XX煤热解,混合煤热解行为是两种煤共同作用的结果。固定床热解实验表明,煤粒径越小,降黏越显著;XX煤和XF煤的比例(XX:XF)越小,降黏越显著,XX:XF小于5:5时,可消除结焦团块;XX:XF越小,半焦产率越低,焦油和煤气产率越高;随XX:XF减小,焦油中<170℃和230~300℃的馏分含量先升后降,XX:XF=6:4~3:7时最高,170~210℃、210~230℃和300~360℃的馏分逐渐增加,>360℃的馏分含量不断降低;随XX:XF的减小,H2含量先升高后降低,在XX:XF=3:7时最高;CO含量呈略微升高趋势;CO2含量先逐步升高,在XX:XF=6:4达到最高,然后从XX:XF=5:5开始降低,在XX:XF=3:7达到最低,然后又开始升高;CH4及C2~C3组分含量呈下降趋势,而H2+CO+CH4 (煤气中有效组分之和)的含量先下降再升高接着再降低,在XX:XF=6:4时最低,XX:XF=3:7时最高。XX:XF越小,虽半焦的C/N和C/H不断减少,但C元素含量增幅和N, H元素含量减幅增大;比表面积越大,内孔结构越多越大,起燃温度越低,燃烧越彻底。     

二甲苯不饱和聚酯树脂的研制

先利用二甲苯与甲醛在酸性条件下合成二甲苯甲醋树脂，并利用顺丁烯二酸对其进行改性实验制得了二甲苯不饱和聚酯树脂。为测试二甲苯不饱和不聚酯树脂的应用性能佬了固化实验，从而确定了合成二甲苯不饱和聚酯树脂地最佳条件。     

Synthesis and properties of sulfonated poly(ether ketone ether sulfone) (S-PEKES) via bisphenol S: effect of sulfonation

Poly(ether ketone ether sulfone) (PEKES) was synthesized by nucleophilic aromatic substitution polycondensation between bisphenol S and 4,4′-difluorobenzophenone (System A), and between bisphenol S and 4,4′-dichlorobenzophenone (System B). Properties of both post-sulfonated polymers are compared with a commercial PEEK 150XF from Victrex^®. The sulfonated polymer samples were characterized by FTIR, ¹H-NMR, TGA, and LCR meter, and the degree of sulfonation (DS) was determined. Advantages of the synthesized PEKES is the better solubility of PEKES in H₂SO₄ relative to PEEK 150XF which results in higher sulfonation degrees, and the S-PEKESs backbones contain the aromatic rings, the carbonyl groups (–C=O) and the sulfone groups (–SO₂–), which promote the chain stiffness and thermal stability. The ion exchange capacity (IEC), the water uptake (%), the dielectric permittivity (ε′), and the electrical conductivity increase monotonically with increasing DS.     

Φ600XF-ⅢJ型氨合成塔内件及其系统操作要点

介绍Φ６００ＸＦ－ⅢＪ型氨合成塔内件的特点。针对操作中出现热点位置下移的情况，提出解决办法和操作要点，以调节触媒床层温度分布尽可能靠近“最佳曲线”，提高氨产量，最大地发掘该内件的潜力。     

Optimization of fermentation condition for co-production of ethanol and 2,3-butanediol (2,3-BD) from hemicellolosic hydrolysates by Klebsiella oxytoca XF7

Microbial production of ethanol and 2,3-butanediol (2,3-BD) from agro-residues has been attracting interest because of their applications in various industries, including generation of biofuel molecules. In the present investigation, the hemicellulosic fraction of corncob was hydrolyzed by indigenous holocellulase from novel psychrotolerant Aspergillus niger SH3 resulting in high xylose release (34.61?g?L^?1), followed by the bioconversion of xylose to ethanol and 2,3-BD. Taguchi design was adopted to optimize the process which resulted in 5.25- and 3.31-fold increase in 2,3-BD (12.18?±?0.53?g?L^?1) and ethanol (4.08?±?0.03?g?L^?1), as compared with un-optimized condition. For the first time, co-production of ethanol and 2,3-BD from the corncob hemicellulosic hydrolysate was performed using a newly isolated Klebsiella oxytoca XF7 strain, under the optimized fermentation conditions. These results suggest that K. oxytoca XF7 is a promising candidate for co-production of ethanol and 2,3-BD, with high xylose conversion efficiency (96.65%), facilitating the economical production of biofuel molecules.     

Resveratrol-Encapsulated Mitochondria-Targeting Liposome Enhances Mitochondrial Respiratory Capacity in Myocardial Cells

The development of drug delivery systems for use in the treatment of cardiovascular diseases is an area of great interest. We report herein on an evaluation of the therapeutic potential of a myocardial mitochondria-targeting liposome, a multifunctional envelope-type nano device for targeting pancreatic β cells (β-MEND) that was previously developed in our laboratory. Resveratrol (RES), a natural polyphenol compound that has a cardioprotective effect, was encapsulated in the β-MEND (β-MEND (RES)), and its efficacy was evaluated using rat myocardioblasts (H9c2 cells). The β-MEND (RES) was readily taken up by H9c2 cells, as verified by fluorescence-activated cell sorter data, and was observed to be colocalized with intracellular mitochondria by confocal laser scanning microscopy. Myocardial mitochondrial function was evaluated by a Seahorse XF Analyzer and the results showed that the β-MEND (RES) significantly activated cellular maximal respiratory capacity. In addition, the β-MEND (RES) showed no cellular toxicity for H9c2 cells as evidenced by Premix WST-1 assays. This is the first report of the use of a myocardial mitochondria-targeting liposome encapsulating RES for activating mitochondrial function, which was clearly confirmed based on analyses using a Seahorse XF Analyzer.