behavior. It is evident that strong interactions between polymer chains exist, effecting polymer crystallization and solubility depending upon both the length of methylene run-lengths between symmetrically placed acids and whether or not the acid group is protected as the ester or free to participate in hydrogen bonding, which directly influences interchain interaction.
合成了包含精确放置的
膦酸的聚
乙烯结构,该结构改变了酸沿主链出现的频率以及与每个位置相关的结构。描述了单键,双键和苄基连接方案,其中对称放置是重要特征。改变这些精确的一级结构直接影响二级结构,在二级结构中,热行为的变化变得明显,尤其是在结晶行为方面。显然,取决于对称放置的酸之间的亚甲基游程长度以及酸基团是否作为酯被保护或自由参与氢键结合,聚合物链之间存在强烈的相互作用,从而影响聚合物的结晶和溶解性,