%0 Journal Article
%T THE AGEING OF RIGID POLYVINYL CHLORIDE AGGRAVATED BY NITRIC AND SULFURIC ACIDS<br>硬聚氯乙烯在硝酸和硫酸中的老化
%A TANG Fu-pei
%A SU Yi-shu
%A <br>唐福培
%A 苏亦姝
%J 高分子学报
%D 1989
%I 
%X The ageing of rigid polyvinyl chloride (R-PVC) aggravated by nitric and sulfuric acids was studied by IR, UV Spectroscopy, thermo-analysis and molecular weight determination. It was found that a number of groups, such as -NO2, -ONO2, -ONO were incorporated into the backbone of the PVC chain. These groups cause the fransition reaction of the instable bonding between the stabilizers and the PVC chain. This not only changes the composition of the materials but also changes the physical conformation. The latter deeply influence the duration of R-PVC Products used in chemical environment.
%K Ageing
%K Rigid polyvinyl
%K Nitric acid
%K Sulfuric acid<br>聚氯乙
%K 硝酸
%K 硫酸
%K 介质老化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=754F96EAA7AAB628&yid=1833A6AA51F779C1&iid=CA4FD0336C81A37A&sid=9971A5E270697F23&eid=933658645952ED9F&journal_id=1000-3304&journal_name=高分子学报&referenced_num=0&reference_num=7