Synthesis and post-polymerization modification of star-shaped poly(ethylene glycol)-block-polydehydroalanine block copolymers: a versatile template for designing multifunctional polymers,Polymer Chemistry

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Synthesis and post-polymerization modification of star-shaped poly(ethylene glycol)-block-polydehydroalanine block copolymers: a versatile template for designing multifunctional polymers
Polymer Chemistry ( IF 4.1 ) Pub Date : 2023-07-12 , DOI: 10.1039/d3py00622k
Peter J. Mons _{1,

2,

3} , Purushottam Poudel _{1,

2,

3} , Marius Hingel _{1,

2,

3} , Felix H. Schacher _{1,

2,

3}

Affiliation

We present the synthesis and further functionalization of star-shaped poly(ethylene glycol)-block-polydehydroalanine [PEG₂₇-b-PDha₄₁]₄, a double hydrophilic block copolymer featuring a polyampholytic PDha segment. In particular, the latter offers the possibility of additional functionalisation via simple chemical modifications. In that way, we demonstrate easy access to multi-responsive star-shaped graft copolymers and we show this in more detail for two selected examples: (1) grafting of N-isopropylacrylamide (NiPAAm) leads to temperature-responsive star-shaped graft copolymers and (2) grafting of aminoazobenzene–acrylamide (AzoAAm) to light-responsive star-shaped graft copolymers.

中文翻译：

星形聚乙二醇-嵌段-聚脱氢丙氨酸嵌段共聚物的合成和聚合后改性：设计多功能聚合物的通用模板

我们介绍了星形聚（乙二醇）-嵌段-聚脱氢丙氨酸[PEG ₂₇ - b -PDha ₄₁ ] ₄的合成和进一步功能化，这是一种具有多两性PDha片段的双亲水性嵌段共聚物。特别是，后者提供了通过简单的化学修饰进行额外功能化的可能性。通过这种方式，我们证明了容易获得多响应星形接枝共聚物，并且我们通过两个选定的例子更详细地展示了这一点：（1）N的接枝-异丙基丙烯酰胺（NiPAAm）产生温度响应性星形接枝共聚物，并且（2）将氨基偶氮苯-丙烯酰胺（AzoAAm）接枝到光响应性星形接枝共聚物。

更新日期：2023-07-12

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