Front Cover: The synthesis castor oil maleate and styrene copolymers (MACO‐St) is studied through suspension polymerization. Also, the effects of temperature, monomers, initiator and water concentration on the molecular weight distribution, thermal stability, viscosity and biodegradability of the copolymers are investigated. The MACO‐St show good thermal stability, high biodegradability and can be produced in a broad range of molecular weights. This is reported by Dayanne L. H. Maia and Fabiano A. N. Fernandes in article 1900017.

中文翻译：

---

大分子 反应 。5/2019

前封面：通过悬浮聚合研究了合成蓖麻油马来酸酯和苯乙烯共聚物（MACO-St）。另外，研究了温度，单体，引发剂和水的浓度对共聚物的分子量分布，热稳定性，粘度和生物降解性的影响。MACO-St具有良好的热稳定性，高生物降解性，并且可以以各种分子量生产。这是由Dayanne LH Maia和Fabiano AN Fernandes在文章1900017中报道的。