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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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含偶氮苯侧基接枝共聚物的可控合成及其光响应性能研究
DOI: 10.11777/j.issn1000-3304.2015.14452, PP. 933-940
Keywords: 开环易位聚合,原子转移自由基聚合,接枝偶氮共聚物,光致异构化
Abstract:
以引发单体为基础,通过两种可控聚合方法,即原子转移自由基聚合(ATRP)和开环易位聚合(ROMP)的联用,合成一种新型侧链含偶氮苯基团的接枝聚合物刷.含叔溴的降冰片烯引发剂首先引发偶氮苯单体的ATRP反应,生成聚合物接枝链,每条接枝链上都带有偶氮苯基团;然后,将具有高环张力降冰片烯的ATRP聚合物作为大分子单体,在第三代Grubbs催化剂的引发下进行ROMP反应,生成结构明确的新型接枝共聚物.其主链每个单体单元上均含有一条带偶氮苯基团的接枝链.最后,研究此类接枝共聚物在紫外与可见光照射下的光响应性能,并用UV-Vis分光光度计研究其在溶液中的顺反异构化过程.
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