接枝共聚物氯化聚乙烯－苯乙烯对聚苯乙烯的共混改性

用氯化聚乙烯接枝苯乙烯共聚物（ＣＰＥ－ｇ－Ｓｔ）和氯比聚乙烯（ＣＰＥ）对聚苯乙烯（ＰＳ）进行共混改性．当ＣＰＥ含量为２５％时，用ＣＰＥ－ｇ－Ｓｔ改性的共混物的冲击强度为１８．５ｋＪ·ｍ￣（－２），是用ＣＰＥ改性的共混物冲击强度的２．１倍；其拉伸强度不低于３４ＭＰａ．     

接枝共聚物氯化聚乙烯—苯乙烯对聚苯乙烯的共混改性

用氯化聚乙烯接枝苯乙烯共聚物（ＣＰＥ－ｇ－Ｓｔ）和氯化聚乙烯（ＣＰＥ）对聚苯乙烯（ＰＳ）进行共混改性。当ＣＰＥ含量为２５％时，用ＣＰＥ－ｇＳｔ改性的共混物的冲击强度为１８．５ｋＪ．ｍ＾－＾２，是用ＣＰＥ改性的共混物冲击强度的２．１倍；其拉伸强度不低于３４ＭＰａ。     

EVA增容PP/HDPE共混体系的形态结构与性能

采用乙烯－醋酸乙烯酯共聚物（ＥＶＡ）作为聚丙烯（ＰＰ）／高密度聚乙烯（ＨＤＰＥ）共混体系的增容剂,通过冲击实验、拉伸实验、示差量热扫描仪（ＤＳＣ）和扫描电镜（ＳＥＭ）,系统地研究了共混体系的性能与其形态结构之间的。结果表明,ＥＶＡ是ＰＰ／ＨＤＰＥ共混物较好物增容剂,ＥＶＡ可以使ＰＰ、ＨＤＰＥ的晶相结构受到一定程度的破坏,增加ＰＰ和ＨＤＰＥ的相容性,同时共混物的冲击韧性明显提高。     

聚苯醚磺酸锂与聚乙二醇共混体系的离子导电性

本文研究影响聚乙二醇（ＰＥＧ）增塑聚苯醚磺酸锂（ＳＰＰＯＬｉ）电导率的各种因素，如摩尔比，及ＰＥＧ分子量等。ＳＰＰＯＬｉ／ＰＥＧ具单离子导体的特征，试样最高室温电导可达１０＾－５Ｓ／ｃｍ。     

乙烯系自由基聚合阻聚效应（ⅩⅧ）：哌啶氮氧自由基氨基硫…

本文研究了３种１－（芳酰基）－４［４＇－（２，２，６，６－四甲基哌啶）－１－氧自由基］氨基硫脲化合物（ＡＴＳＣＰＯ）分别同通用阻聚剂（ＣＩＨ），如对苯二酚（ＨＱ），苯醌（ＢＱ），吩噻嗪（ＰＴ）及二乙羟胺（ＤＥＨＡ）组成的混合阻聚剂对ＡＩＢＮ引发的ＭＭＡ自由基聚合的影响，研究结果表明：当［ＡＴＳＣＰＰ］／ＣＩＨ＝５：１时，除ＡＴＳＣＰＯ－ＢＱ外，其余阻聚效果均较ＡＴＳＣＰＯ和ＣＩＨ单独用作阻聚剂时高     

羧化聚苯醚／聚（苯乙烯—乙烯吡啶）共混相容性

用ＤＳＣ、ＤＭＡ研究了羧化聚苯醚（ＣＰＰＯ）／聚（苯乙烯－乙烯吡啶）（ＰＳＶＰ）共混体系的相容性，结果表明，与ＣＰＰＯ／ＰＳ体系相比，乙烯吡啶基的引入大大提高了共混相容性．这主要是由于ＣＰＰＯ中的羧基与ＰＳＶＰ中的吡啶基之间通过质子转移形成的正负离子间的相互作用，推动了两组分分子的均匀混合．     

PARAMAGNETIC AND DIAMAGNETIC DICOPPER（Ⅱ） COMPLEXES WITH DI－SCHIFF BASE DERIVED FROM 2－HYDROXY－1－NAPHTHALDEHYDE AND1，3－DIANINO－2－PROPANOL

ＰＡＲＡＭＡＧＮＥＴＩＣＡＮＤＤＩＡＭＡＧＮＥＴＩＣＤＩＣＯＰＰＥＲ（Ⅱ）ＣＯＭＰＬＥＸＥＳＷＩＴＨＤＩ－ＳＣＨＩＦＦＢＡＳＥＤＥＲＩＶＥＤＦＲＯＭ２－ＨＹＤＲＯＸＹ－１－ＮＡＰＨＴＨＡＬＤＥＨＹＤＥＡＮＤ１，３－ＤＩＡＮＩＮＯ－２－ＰＲＯＰＡＮＯＬ...     

苯乙烯在炭黑表面的阴离子接枝聚合研究

利用正丁基锂（ｎ－ＢｕＬｉ）与炭黑（ＣＢ）表面含氧基团反应制得了表面含－ＯＬｉ基团的反应型炭黑，以该炭黑与聚氧乙烯－聚氧丙烯－聚苯乙烯（ＰＥＯ－ＰＰＯ－ＰＳ）多嵌段聚合物组成的阴离子引发体系作活性中心，研究了苯乙烯在炭黑表面的阴离子接枝聚合。ＦＴ－ＩＲ，ＴＥＭ和ＤＳＣ分析表明在接枝炭黑表面存在苯乙烯的聚合物。接枝炭黑在甲苯中有良好的分散稳定性。     

BICENTRAL POLYMER SUPPORTED PHASE TRANSFER CATALYST POLYSTYRENE－SUPPORTED POLYETHYLENE GLYCOL AND PYRIDINIUM SALT

ＢＩＣＥＮＴＲＡＬＰＯＬＹＭＥＲＳＵＰＰＯＲＴＥＤＰＨＡＳＥＴＲＡＮＳＦＥＲＣＡＴＡＬＹＳＴＰＯＬＹＳＴＹＲＥＮＥ－ＳＵＰＰＯＲＴＥＤＰＯＬＹＥＴＨＹＬＥＮＥＧＬＹＣＯＬＡＮＤＰＹＲＩＤＩＮＩＵＭＳＡＬＴＹａｎｇＪｉａｎｗｅｎ（Ｉｎｓｔｉｔｕｔｅｏｆ...     

PREPARATIONS OF COPPER (Ⅰ) COMPLEXES WITH NOVEL PYRAZOLYLBORATES

ＰＲＥＰＡＲＡＴＩＯＮＳ　ＯＦ　ＣＯＰＰＥＲ（Ⅰ）ＣＯＭＰＬＥＸＥＳ　ＷＩＴＨ　ＮＯＶＥＬ　ＰＹＲＡＺＯＬＹＬＢＯＲＡＴＥＳＰＲＥＰＡＲＡＴＩＯＮＳＯＦＣＯＰＰＥＲ（Ⅰ）ＣＯＭＰＬＥＸＥＳＷＩＴＨＮＯＶＥＬＰＹＲＡＺＯＬＹＬＢＯＲＡＴＥＳ￥ＫｅＷｕＹ...     

酞侧基聚芳醚砜／对苯二甲酸乙二酯－对羟基苯甲酸嵌段共聚物共混物的研究

The blends of phenolphthalein Polyethersulfone (PES - C ) and a thermotropic liquid crystalline polymer (LCP ) were prepared using melting mixing method.Rheological and mechanical properties of the blends were investigated. It was shown that addition of LCP in PES-C resulted in marked reduction of melt viscosity and improved processibility. The Chadly impact strength of the blend containing 2. 5% LCP increased about 2. 5 times comparing with pure PES-C. The tensile strength, Young's modulus, fie-cural strength and flexural modulus of the PES-C/LCP blends were also improved on some extent. The morphology of these blends were also observed by SEM,and the relationship between the me-chanical properties and the morphology of blends were discussed.     

热致液晶PEI与PES—C共混物的研究

通过熔融共混,制备不同配比（２．５／９７．５－７５／２５）的ＰＥＩ／ＰＥＳ－Ｃ共混物,使用ＷＡＸＤ、ＤＳＣ、锥板流变仪、力学性能测试、ＳＥＭ等方法对共混物进行了研究。共混后强度、模量均有提高,在高剪切速率下,共混物的粘度有所降低。扫描电镜照片显示,共混物具有“皮芯”结构。     

酞侧基聚芳醚砜／对苯二甲酸乙二酯－对羟基苯甲酸嵌段共聚物共混物的研究

酞侧基聚芳醚砜／对苯二甲酸乙二酯－对羟基苯甲酸嵌段共聚物共混物的研究李刚，殷敬华，李滨耀（中国科学院长春应用化学研究所，长春，１３００２２）关键词酞侧基聚芳醚砜，热致性液晶高聚物，原位复合材料，对苯二甲酸乙二酯－对羟基苯甲酸嵌段共聚物将热塑性树脂与热...     

热致液晶共聚酯／含酚酞侧基聚芳醚砜共混物的流变行为研究

采用溶液共混制备耻不同比例的热致液晶共聚酯／含酚酞侧基聚芳醚砜共混物。利用锥板流变仪对共混体系的熔体流变性能进行了初步研究，测定了熔体粘度－温度、粘度－剪切速度的关系，结果表明该液晶聚合物能明显降低聚芳醚砜的熔体粘度。     

Reactive Blends of Poly(phenylene sulfide)/Hyperbranched Poly(phenylene sulfide)

Summary: Polymer blends consisting of linear poly(phenylene sulfide) (PPS) and hyperbranched PPS (HPPS) were obtained in melt. The solid-state properties of PPS and their blends were investigated by scanning electron microscopy (SEM), thermogravimetric analyzer (TGA), extraction measurement, differential scanning calorimetry (DSC) and dynamical mechanical analysis (DMA). Blends prepared by melt mixing turned out to be reactive as shown by the TGA and extraction measurement. SEM indicated that no phase separation occurs in PPS/HPPS blends. The degree of crystallization of the blends decreased with increasing HPPS content. Both the storage modulus and loss modulus increased as HPPS content increasing.     

Thermal and dynamic mechanical properties of PES/PPS blends

Blends of poly(ether-sulfone) (PES) and poly(phenylene sulfide) (PPS) with various compositions were prepared using an internal mixer at 290°C and 50 rpm for 10 min. The thermal and dynamic mechanical properties of PES/PPS blends have been investigated by means of DSC and DMA. The blends showed two glass transition temperatures corresponding to PPS-rich and PES-rich phases. Both of them decreased obviously for the blends with PES matrix. On the other hand, T_g of PPS and PES phase decreased a little when PPS is the continuous phase. In the blends quenched from molten state the cold crystallization temperature of PPS was detected in the blends of PES/PPS with mass ratio 50/50 and 60/40. The melting point, crystallization temperature and the crystallinity of blended PPS were nearly unaffected when the mass ratio of PES was less than 60%, however, when the amount of PES is over 60% in the blends, the crystallization of PPS chains was hindered. The thermal and the dynamic mechanical properties of the PPS/PES blends were mainly controlled by the continued phase. This revised version was published online in August 2006 with corrections to the Cover Date.     

酞侧基聚芳醚砜和聚芳醚酮的相容性

本文报道注射级酞侧基聚芳醚砜(PES-C)和聚芳醚酮(PEK-C)共混试样的玻璃化转变行为和部分力学性能的研究结果。并讨论共混工艺对相容性的影响。 PES-C和PEK-C树脂均由中国科学院长春应用化学研究所徐州工程塑料厂合成,在三氯甲烷中的比浓粘度ηsp/c(20℃)分别为0.45和0.47。将粉状树脂在GH-100Q高速搅拌器内按配方混合,并在烘箱内干燥后,用SHJ-30双螺杆挤出机在320～350℃(物料温度)挤出造粒。     

A DSC study of miscibility and phase separation in crystalline polymer blends of phenolphthalein poly(ether ether sulfone) and poly(ethylene oxide)

The miscibility of blends of phenolphthalein poly(ether ether sulfone) (PES-C) and poly(ethylene oxide) (PEO) was established on the basis of the thermal analysis results. Differential scanning calorimetry (DSC) studies showed that the PES-C/PEO blends prepared by casting from N,N-dimethylformamide (DMF) possessed a single, composition-dependent glass transition temperature (T_g), and thus that PES-C and PEO are miscible in the amorphous state at all compositions at lower temperature. At higher temperature, the blends underwent phase separation, and the PES-C/PEO blend system was found to display a lower critical solution temperature (LCST) behavior. The phase separation process in the blends has also been investigated by using DSC. Annealed at high temperatures, the PES-C/PEO blends exhibited significant changes of thermal properties, such as the enthalpy of crystallization and fusion, temperatures of crystallization and melting, depending on blend composition when phase separation occurred. These changes reflect different characteristics of phase structure in the blends, and were taken as probes to determine phase boundary. From both the thermal analysis and optical microscopy, the phase diagram of the blend system was established. © 1997 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 35 : 1383–1392, 1997     

Thermal,Mechanical and Rheological Properties of Eco-friendly Poly（propylene carbonate）/Poly（1,2-propylene succinate） Blends

In order to improve the flexibility of poly（propylene carbonate） （PPC）, poly（1,2-propylene succinate） （PPSu） was used to plasticize PPC in a batch mixer. The effects of PPSu on the miscibility, thermal stability, mechanical and theological properties of the blends were investigated. PPC was partially miscible with PPSu. It was demonstrated that PPSu decreased the glass transition temperature and melt viscosity of PPC, as shown in the DSC and rheological curves. With the increase in PPSu content, the PPC/PPSu blends showed decreased tensile strength, however, the elongation at break was increased to 1100% for the 70/30 PPC/PPSu blend. The introduction of PPSu provided an efficient and novel plasticization method to extend the application area of PPC.     

Mechanical and thermal properties of syndiotactic polystyrene blends with poly(p-phenylene sulfide)

Melt blends of syndiotactic polystyrene (sPS) and poly(p-phenylene sulfide) (PPS) have been prepared by using an internal mixer at 300 °C. The thermal, mechanical and morphological properties of binary blends of sPS with PPS have been investigated in this paper. The thermal and morphological properties show the immiscible binary blend evidences, which have a clear phase separation between the components at all compositions and a lack of adhesion at the interface. According to the X-ray diffraction patterns of blends, the crystalline structure of sPS in the blend is not altered from α form to β form. Indeed, the results for tensile test reveal that there is no synergism of the modulus of elasticity for sPS/PPS blend system.