聚苯乙炔螺旋构象的稳定性随着温度的提高而降低。
Moreover, the stability of helical conformation of poly (phenylacetylene) decreased with the increasing temperature.
保护措施预防撞击和贯穿是用碳纤维和聚芳族胺，和透过高密度扩大的聚苯乙烯制成的垫塞。
Protection against impacts and perforation is ensured by a shell in carbon fibers and aramid, and by an expanded polystyrene inner padding with high density.
目前常用的高分子材料有聚多糖类、氨基酸类、乙基纤维素、聚乙烯醇、聚丙烯酸、聚苯乙烯等。
At present the commonly used high polymer material has gathers the multi-carbohydrates, the amino acid, the ethyl cellulose, the polyvinyl alcohol, the polyacrylic acid, the polystyrene and so on.
当均聚物质量分数增大到33.3%时，在聚苯乙烯（PS）连续相中形成了类似胶束的“核-壳”结构。
When the mass fraction of the homopolymer in blends reaches 33.3%, the "core-shell" structure, similar to the micelles, can be clearly observed in the polystyrene (PS) matrix.
用链长分布不同的活性聚苯乙烯子聚物与二乙烯基苯进行阴离子嵌段共聚，合成了一系列两相模型交联网络。
A number of model networks were prepared by anionic block copolymerization of divinylbenzene with various living polystyrene precursors having different chain length distribution.
在PHB的均聚物是一种高结晶度，其不同于那些不聚苯乙烯力学性能，比较脆硬聚合物，虽然它是那么脆弱。
The PHB homopolymer is a stiff and rather brittle polymer of high crystallinity, whose mechanical properties are not unlike those of polystyrene, though it is less brittle.
是聚乙烯、聚丙烯、聚苯乙烯、ABS树脂、聚脂、纤维素树脂和泡沫塑料的廉价通用抗氧剂，特别适用于白色或浅色制品。
Is polyethylene, polypropylene, polystyrene, ABS resin, polyester resin, cellulose and cheap general foam plastics antioxidants, especially suitable for white or light color products.
论文分别研究了两种聚酮样品及其与聚苯乙烯（PS）共混产物的光降解性能，结果表明，分子量大的聚酮的光降解性能更好；
The photodegradations of polyketone samples and blends of polyketones with polystyrene(PS) were studied. It shows that the higher molecular weight of polyketones is the better photodegradation rate.
本文对以甲基丙烯酸甲酯预聚物（Pr-MMA）为光散射体，以聚苯乙烯（PS）为基体的有机光散射材料的制备进行了研究。
The thesis makes researches into taking the pre-polymer of methyl methacrylate (Pr-MMA) as light scattering substance, and polystyrene (PS) as matrix to make organic light scattering materials.
采用正交设计法分析了聚磷酸胺(APP)、季戊四醇(PER)、三聚氰胺(MEL)作为一种混合体系对聚苯乙烯(PS)的阻燃作用。
The flame retardance of a composite system consisting of ammonium polyphosphate (APP), pentaerythritol (PER) and melamine (MEL) used for polystyrene (PS) was studied with orthogonal design method.
研究了（口恶）唑啉官能化聚苯乙烯（RPS）对聚酰胺66/聚对苯二甲酸乙二酯（PA 66/PET）共混物力学性能和相容性的影响。
The effects of PS with oxazoline functional group (RPS) on the mechanical properties and compatibility of PA 66/PET blends were studied.
这些化合物能均聚反应，亦易与苯乙烯、甲基丙烯酸甲酯及丙烯腈等乙烯类单体共聚合，得有色的高聚物。
These colored compounds can be homopolymerized and copolymerized with most vinyl monomers such as styrene, methyl methacrylate and acrylonitrile, to give the corresponding colored polymers.
采用差示扫描量热仪（DSC）研究了离聚物苯乙烯-丙烯酸钠对聚对苯二甲酸乙二酯（PET）的结晶行为及熔融行为的影响。
The effect of ionomer styrene-sodium acrylate(SAA-Na) on the crystallization and melting behaviors of polyethylene terephthalate(PET) was investigated by using differential scanning calorimetry(DSC).
采用由乙酸钯、2 ，2’ 联吡啶与强酸组成的催化体系，催化一氧化碳和苯乙烯的共聚反应合成聚酮（STCO）。
Polyketone (STCO) was prepared by the copolymerization of carbon monoxide and styrene catalyzed by a composite catalyst system- palladium acetate, 2,2' bipyrodine associated with a strong acid.
通过淤浆预聚对齐格勒·纳塔催化剂催化的苯乙烯预聚动力学规律和预聚条件对预聚物粒子形态的影响进行了系统的研究。
The polymerization kinetics of styrene catalyzed by Ziegler-Natta catalyst and the effects of prepolymerization conditions on morphology of prepolymer particles were systemically studied.
发现恒重后的双锍盐含有二个结晶水这一新现象，并确认最终产物为聚对苯乙炔。
Based on our determined results, we had found a new phenomenon that the disulphonium salt contains two crystal-waters and the last product is PPV.
以三苯乙烯基苯酚聚氧乙烯醚和氨基磺酸为原料，合成了三苯乙烯基苯酚聚氧乙烯醚硫酸酯铵盐。
Ammonium tristyrylphenol polyoxyethylene ether sulfate was synthesized from tristyrylphenol polyoxyethylene ether and sulfamic acid using urea as catalyst.
本工作研究了由蓖麻油型聚氨酯及苯乙烯、甲基丙烯酸甲酯、丙烯腈的均聚物或共聚物组成的互穿网络物在室温条件下的合成规律。
The Conditions for formation of IPN from castor oil polyurethane and homopolymer or copolymer of styrene, methylmethacrylate and acrylonitrile at room temperature were Studied.
提高反应温度和增加催化剂浓度都能改变口-甲基苯乙烯的聚过氧化物的稳定性，使其开裂并最终转化为苯甲酸。
The yield of benzoic acid could be improved by increasing operational temperature and catalyst dosage which could accelerate cleavage of polyperoxide to form benzoic acid.
本发明属于无机材料技术领域，具体为一种固体酸催化剂-聚对苯乙烯磺酸接枝改性碳纳米管的制备方法。
The invention belongs to the field of inorganic materials technology, specifically as a solid acid catalyst - grafted poly styrene sulfonic acid preparation method of carbon nanotubes.
三中单体的聚合产生了具有两相的三元共聚物，一个是苯乙烯-丙烯腈的连续相， 另一个是聚丁二烯橡胶分散相。
The polymerization of the three monomers produces a terpolymer which has two phases: a continuous phase of styrene-acrylonitrile (SAN) and a dispersed phase of polybutadiene rubber.
所述低极性添加剂是一种苯乙烯化的萜烯树脂或者是一种聚萜烯树脂。
The low-polarity additive is either a styrenated terpene resin or a polyterpene resin.
甲基苯乙烯环状二聚体1,3,3 -三甲基- 1 -苯基茚满的催化合成方法。
Catalytic synthesis of AMS cyclic dimer 1, 3, 3-trimethyl-1-phenyl indane.
讨论了预聚温度、 催化剂等对大分子单体制备的影响，且对大分子单体与苯乙烯共聚的固化过程进行了探讨。
The influence of several factors on the preparation of the macromer was studied. In addition, the curing behavior of the macromer with styrene was al…
方法以苯乙胺为原料，经酰化反应得乙酰苯乙胺，在多聚磷酸的作用下环合得1-甲基-3，4-二氢异喹啉，经硼氢化钠还原得1-甲基-1，2，3，4-四氢异喹啉。
Methods 1-Methyl-1,2,3,4-tetrahydroisoquinoline was synthesized from phenethylamine through three steps:acetylation with acetyl chloride, cyclization with PPA and reduction with potassium borohydride.
在旋转异构态理论基础上，建立双侧基高分子链均方旋转半径的计算公式，由此得到聚甲基苯乙烯的均方旋转半径特征比与链长的关系，计算结果与实验数值十分一致。
Using the rotational isomeric state theory, the mean square radius of gyration < S 2> and its temperature coefficient for the polymer chain with large side groups are derived.
在旋转异构态理论基础上，建立双侧基高分子链均方旋转半径的计算公式，由此得到聚甲基苯乙烯的均方旋转半径特征比与链长的关系，计算结果与实验数值十分一致。
Using the rotational isomeric state theory, the mean square radius of gyration < S 2> and its temperature coefficient for the polymer chain with large side groups are derived.
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