异丁烯

FeCl_3 was used to catalyse the acylation reaction of triisobutylene by acetic anhydride at room temperature.

室温下FeCl3用于催化三聚异丁烯与乙酸酐的酰化反应。

An example of particle-reinforced composites is an automobile tire which has carbon black particles in a matrix of polyisobutylene elastomeric polymer.

微粒加强型复合材料的一个例子是机动车胎，它就是在聚异丁烯人造橡胶聚合物基材中加入了碳黑微粒。

The catalytic activity of this new resin catalyst in the isobutene oligomerization was measured in detail, it exhibited good catalytic activity and excellent isobutene dimerization selectivity.

在异丁烯的低聚反应中，对这种新型树脂催化剂的催化活性进行了细致的研究，磺化聚醚碸酮树脂催化剂在反应中表现出了很好的催化活性和优良的二聚选择性。

MTBE can be formed by addition of methanol to the double bond of isobutene.

MTBE可由异丁烯和甲醇经加成反应而合成。

It is demonstrated that living polymerization can be achieved when the concentration of electron pair donors such as DMAB or Et3N is higher than that of trace water in the polymerization system,and that polymers with narrow molecular weight distribution can be obtained.

发现当N，N-二甲基苯胺或三乙胺的浓度稍高于质子性杂质的浓度时，即能实现异丁烯的活性聚合，得到分子量分布较窄的聚合物。

The selectivity is close to 100% and the highest conversion of IB is 92% on optimum conditions.

在最佳条件下处理的分子筛，最高异丁烯转化率达到92％。

Effects of reaction temperature, volume ratio of water to isobutylene and linear flowrate of C4 raffinate on activity of the catalyst were studied.

考察了反应温度、水油体积比和抽余C4烃的流速等对异丁烯转化率的影响。

Meanwhile,the factors which affected the drying were also analyzed including the flow rate of methyl chloride ,the content of isobutylene,the amount of regenerated nitrogen,the regeneration time,the discharging condition of methyl chloride remaining in tower before regeneration,the using time of Al_2O_3,and so on.

研究了丁基橡胶装置干燥塔的干燥、再生过程，对影响干燥效果的主要因素如氯甲烷流量、异丁烯含量、再生氮气量、再生时间、再生前塔内残留氯甲烷的排放程度、干燥剂Al_2O_3的使用时间等进行了分析。

Exxpro specialty elastomers are brominated polymer s derived from a co polymer of isobutylene and paramethylstyrene.

Exxpro特种弹性体是一种溴化聚合物，由异丁烯和对甲基苯乙烯共聚物制得。

A high molecular weight polyisobutenyl succinimide dispersant with high nitrogen content and good thermal and oxidative stabilities was developed.

采用氯化烃化工艺和后偶联反应技术开发了一种氮含量高、热稳定性和氧化稳定性好的高相对分子质量的聚异丁烯基丁二酰亚胺分散剂。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新