Preparation of Photo‐Crosslinking Starch Colloidal Particles,Starch

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Preparation of Photo‐Crosslinking Starch Colloidal Particles
Starch ( IF 2.6 ) Pub Date : 2020-02-16 , DOI: 10.1002/star.201900175
Rongli Zhang ₁ , Fangwen Chu ₁ , Yunqin Hu ₁ , Huiling Hu ₁ , Yulong Hu ₁ , Huan Liu ₁ , Chaofei Huo ₁ , Hao Wang ₂

Affiliation

A photo‐crosslinking cinnamic acid‐modified starch (CA‐St) copolymer is synthesized through an esterification reaction using 4‐dimethylaminopyridine and 1‐(3‐dimethylaminopropyl)‐3‐ethylcarbodiimide as catalysts. The structure of the CA‐St is confirmed by ¹H nuclear magnetic resonance and infrared spectroscopy. Using the nanoprecipitation method, the photo‐crosslinking CA‐St copolymer is aggregated into colloidal particles (CPs). The formation process and photo‐crosslinking of CA‐St CPs are evaluated in terms of size distribution, and ultraviolet and visible spectrophotometry. The scanning electron microscopy shows that the CA‐St CPs comprise spherical particles with a diameter of approximately 410 nm. This type of photo‐crosslinking CP has potential applications in nano‐ and biotechnology fields.

中文翻译：

光交联淀粉胶体颗粒的制备

通过使用4-二甲基氨基吡啶和1-（3-二甲基氨基丙基）-3-乙基碳二亚胺作为催化剂的酯化反应合成光交联肉桂酸改性淀粉（CA-St）共聚物。¹ H核磁共振和红外光谱证实了CA-St的结构。使用纳米沉淀法，将光交联的CA-St共聚物聚集成胶体颗粒（CP）。CA-St CP的形成过程和光交联通过尺寸分布以及紫外和可见分光光度法进行评估。扫描电子显微镜显示，CA-St CPs包含直径约为410 nm的球形颗粒。这种类型的光交联CP在纳米和生物技术领域具有潜在的应用。

更新日期：2020-02-16

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