Macromonomers: A new class of polymeric intermediates in macromolecular synthesis - II - homo- and copolymerization†‡

Macromonomers: A new class of polymeric intermediates in macromolecular synthesis - II - homo- and copolymerization†‡
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大分子单体:大分子合成中的一类新型聚合物中间体 - II - 均聚和共聚†‡

DOI:
10.1002/macp.1985.020131985105
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发表时间:
1985
影响因子:
2.5
通讯作者:
P. Chaumont
P. Chaumont
中科院分区:
化学4区
文献类型:
--
作者:
P. Rempp;P. Lutz;P. Masson;P. Chaumont

文献摘要

被引文献

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本文讨论了大分子单体与乙烯类或丙烯酸类共聚单体进行聚合和共聚的能力。 聚大分子单体可以通过自由基聚合或阴离子聚合技术制备。形成的物种是分支的,其特征在于高段密度,这意味着它们的分子尺寸小于相同分子量的线性同系物。 研究了不同类型大分子单体与低分子量共聚单体的自由基共聚合动力学。所得到的接枝共聚物在组成上是均匀的,这可以从所使用的大分子单体与单体的摩尔比来预期。特别强调的是两亲性物种,亲水性接枝连接到疏水性骨干。这些共聚物表现出形成稳定乳液的强烈倾向。
This paper deals with the ability of macromonomers to undergo polymerization and copolymerization with vinylic or acrylic comonomers. Polymacromonomers have been made by free radical or by anionic polymerization techniques. The species formed are branched, and characterized by high segment densities, which imply that their molecular dimensions are smaller than those of linear homologues of the same molecular weight. The free radical copolymerization of various types of macromonomers with low molecular weight comonomers was investigated kinetically. The graft copolymers obtained are homogeneous in composition, as it could be anticipated from the mole ratio of macromonomer to monomer used. Special emphasis was given to amphiphilic species, made of hydrophilic grafts attached to a hydrophobic backbone. These copolymers exhibit a strong tendency to form stable emulsions.