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首页> 外文期刊>Journal of Applied Polymer Science >GRAFTING REACTIONS ONTO POLYORGANOPHOSPHAZENES .5. PHOTOSTABILIZATION OF POLY[BIS(4-BENZYLPHENOXY)PHOSPHAZENE] BY LIGHT-INDUCED GRAFTING COPOLYMERIZATION OF ACRYLATE POLYMERS CONTAINING PENDANT HALS MOIETIES
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GRAFTING REACTIONS ONTO POLYORGANOPHOSPHAZENES .5. PHOTOSTABILIZATION OF POLY[BIS(4-BENZYLPHENOXY)PHOSPHAZENE] BY LIGHT-INDUCED GRAFTING COPOLYMERIZATION OF ACRYLATE POLYMERS CONTAINING PENDANT HALS MOIETIES

机译：在多有机磷上的接枝反应.5。含侧链HALS部分的丙烯酸酯聚合物的光诱导接枝共聚光稳定聚[双（4-苯甲酰氧基）膦]

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摘要

The light-induced grafting reaction of acrylate monomers containing hindered piperidine groups (HALS) onto poly[bis(4-benzylphenoxy)phosphazene] is described as a function of several different experimental parameters, i.e., type of photoinitiator (benzophenone or benzoin ethyl ether), monomer concentration, solvent composition, light intensity, and swelling of the polyphosphazene films. The obtained phosphazene-g-HALS-containing acrylate-grafted copolymers, irradiated with light of wavelength longer than 300 nm under accelerated photooxidative conditions to test the photostabilizing ability of the grafted HALS groups, showed that the hindered piperidine groups grafted onto the polyphosphazene matrix are able to considerably depress she damage caused to the poly [bis(4-benzylphenoxy)phosphazene] films during light exposure. The efficiency of this process seems to be related to the amount of HALS residues grafted onto the phosphazene substrates. (C) 1996 John Wiley & Sons, Inc. [References: 79]
机译：包含受阻哌啶基团（HALS）的丙烯酸酯单体在聚[双（4-苄基苯氧基）磷腈]上的光诱导接枝反应被描述为几种不同实验参数的函数，即光引发剂的类型（二苯甲酮或苯偶姻乙醚） ，单体浓度，溶剂组成，光强度和聚磷腈薄膜的溶胀。所得的含磷腈-g-HALS的丙烯酸酯接枝共聚物在加速的光氧化条件下用波长大于300 nm的光照射以测试接枝的HALS基团的光稳定能力，表明接枝到聚磷腈基体上的受阻哌啶基团是能够显着抑制曝光期间对聚[双（4-苄基苯氧基）磷腈]薄膜造成的损害。该方法的效率似乎与接枝到磷腈底物上的HALS残基的数量有关。 （C）1996 John Wiley＆Sons，Inc. [参考：79]

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