isotactic

It is called isotactic polypropylene.

是一种叫等规聚丙烯的材料.

Isotactic diad decreases with the increase of radiation dose . Meanwhile, atactic and syndiotactic diad increases.

随着辐照剂量的增加, 全同立构含量逐渐减少,而无规立构含量和间同立构含量却逐渐增加.

The synthesis isotactic polymers is usually only possible by means of special stereospecific ( stereoregulating ) initiators.

通常只能用特殊的立体定向 ( 立体调节 ) 引发剂来合成等规聚合物.

The best way to represent the isotactic structure is with molecular models.

表示等规结构的最好方法是用分子模型.

Effect of long chain branched structure for isotactic polypropylene on crystallization behaviors

长支链结构对等规聚丙烯结晶行为的影响

The catalytic efficiency was more than 34.8 kg/ g. The poly ( 1-butene)( PBt) included both isotactic structure and atactic structure.

实验表明，该催化体系对Bt聚合催化效率可达34.8kg／g，聚合物为全同立构和无规立构聚1－丁烯的混合物。

the retractive stress, strain-stress and dynamic mechanical properties have been measured for the isotactic polypropylene ( ipp) samples as drawn and annealed. with increasing temperature, the retractive stress increases, goes through a maximum and then decreases rapidly.

本工作对室温拉伸的等规聚丙烯（iPP）及其退火样品进行了收缩应力、应力应变及动态力学性能测量，得到了在温度升高和降低过程中收缩应力的变化。

This paper analyzed the microstructure and properties of the low isotactic polypropylene ( LIPP ) prepared isotactic catalyst.

采用低等规聚丙烯 ( LIPP ) 催化剂制得LIPP,并测定其微观结构和性能.

The fractionation, viscosity and light-scattering measurements for three types of polystyrene, i.e., atactic, isotactic and 1:1 mixture of the two, were studied.

本文报导了有规立构聚苯乙烯，无规立构聚苯乙烯和1∶1混合有规和无规立构聚苯乙烯的分级、粘度和光散射测试结果。

It was concluded from the experiment that the content of the isotactic polymer was the lest, the syndiotactic polymer was the most and the atactic polymer was between them.

由实验得到以下主要结论：PA-18降凝剂结构中全同立构聚合物含量最少，间同立构聚合物含量最多，无规立构聚合物含量介于两者之间。

The synthesis of isotactic polymers is usually only possible by means of special sterospecific ( stereoregulating ) initiators.

通常只能用特殊的立体定向(立体调发)引发剂 ( Ziegler催化剂 ) 来合成等规聚合物.

The extraction separation experiment and differential scanning calorimetric measurement indicate that the resultant belongs to crystallizable isotactic polymer, possessing isotactic index ranging from 45% to 90%, melting point 215 ℃ and Vicat softening point 193 ℃.

抽提分离和差示扫描量热法测试表明，其为结晶型全同立构聚合物，全同立构含量为45%~90%，熔点为215℃，维卡软化点为193℃。

Polyacetadehyde may exist in atactic, syndiotactic and isotactic forms.

聚乙醛它和聚烯烃一样,可以以无规, 间同和全同形式存在.

The dissolvability of chlorinated isotactic polypropylene ( CIPP ) prepared via solid state chlorinated was investigated.

研究了制备工艺条件、原料性质等对氯化等 规聚丙烯 溶解性能的影响.

Deformation of Isotactic Polypropylene Monofilament along Production Line

等规聚丙烯单丝沿生产线应力取向和结晶变化

The aim of this article is to explore the relationship between processing conditions, structures and the properties of isotactic polypropylene ( i-PP) prepared via a new processing methodology of iso-channel angular extrusion ( ICAE).

采用等通道转角挤出方法对等规聚丙烯进行自增强挤出，研究和分析挤出工艺条件与材料结构、性能之间的关系。

Polyacetaldehyde may exist in atactic, syndiotactic and isotactic forms.

聚乙醛可以以无规, 间同和全同形式存在.

Solid phase grafting onto low isotactic polypropylene ( LIPP ) was studied in this paper.

研究了低等规度聚丙烯 ( LIPP)固相接枝马来酸酐(MAH ).

retractive stress and mechanical properties of cold-drawn isotactic polypropylene

冷拉聚丙烯的收缩应力和力学性能

Progress of recent studies on the deformation mechanism for spherulites of isotactic polypropylene ( I PP) in the uniaxial and biaxial orientation process was introduced.

介绍了近来国内外对单向、双向拉伸过程中全同立构聚丙烯（iPP）晶体内部球晶形变机理的研究进展。

Isotactic polypropylene ( iPP ) flat sheet microporous membranes were prepared via thermally induced phase separation ( TIPS ).

以热致相分离法制备了聚丙烯平板微孔膜.