6. 绿色塑料——聚L－乳酸产业化
　　聚L-乳酸（PLLA）是新型环保塑料，可以广泛应用于一次性容器、餐具、薄膜、纤维、服装、汽车等领域，将逐渐取代部分聚烯烃塑料，解决白色污染问题，具有重大的经济效益和社会效益。目前美国Cargill Dow公司达到了年14万吨的生产能力。我们采用自制的新型乳酸低聚和高温裂解催化剂取代硫酸亚锡、氯化亚锡等催化剂，使裂解温度降低了10℃以上，初步解决了L-乳酸的消旋化问题，保持了L-丙交酯的旋光纯度，而且乳酸转化率达到95％以上。该固体催化剂易于制备和纯化。聚合物的性能达到了Cargill Dow 产品的水平。同浙江海正集团合作完成了200立升釜的全套中试工艺研究，正在进行5000吨/年示范生产线的建设，2006年底前达到生产能力。将于2007年开始建立10万吨/年的生产厂。

主要代表性论文（2001-2006）
1. Huayu Tian, Xuesi Chen*, Hao Lin, Chao Deng, Peibiao Zhang, Yen Wei, Xiabin Jing, Micellization and Reversible pH-Sensitive Phase Transfer of the Hyperbranched Multiarm PEI–PBLG Copolymer, Chemistry – A European Journal, 2006.
2. Chaoliang He, Jingru Sun, Ting Zhao, Zhongkui Hong, Xiuli Zhuang, Xuesi Chen,* and Xiabin Jing, Formation of a Unique Crystal Morphology for the Poly(ethylene glycol)-Poly(e-caprolactone) Diblock Copolymer, Biomacromolecules 2006, 7, 252-258.
3. Junli Hu, Zhaohui Tang, Xueyu Qiu, Xuan Pang, Yongkun Yang, Xuesi Chen*, Xiabin Jing, Formation of Flower- or Cake-Shaped Stereocomplex Particles from the Stereo Multiblock Copoly(rac-lactide)s, Biomacromolecules, 2005; 6(5); 2843-2850. 4. Huayu Tian, Chao Deng, Hao Lin, Jingru Sun, Mingxiao Deng, Xuesi Chen*, and Xiabin Jing, Biodegradable Cationic PEG-PEI-PBLG Hyperbranched Block Copolymer: Synthesis and Micelle, Biomaterials, 2005, 26(20), 4209-4217.
5. Zhongkui Hong, Peibiao Zhang, Chaoliang He, Xueyu Qiu, Aixue Liu, Li Chen, Xuesi Chen*,Xiabin Jing, Nano-composite of poly(L-lactide) and surface grafted hydroxyapatite: Mechanical properties and biocompatibility, Biomaterials, 2005, 32(26), 6296-6304.
6. Xueyu Qiu, Zhongkun Hong, Junli Hu, Li Chen, Xuesi Chen*, Xiabin Jing, Hydroxyapatite Surface Modified by L-lactic Acid and Its Subsequent Grafting Polymerization of L-lactide, Biomacromolecules, 2005, 3(6), 1193-1199.
7. Chao Deng, Guangzhuo Rong, Huayu Tian, Zhaohui Tang, Xuesi Chen*, Xiabin Jing, “Synthesis and characterization of poly(ethylene glycol)-b-poly (L-lactide)-b-poly(L-glutamic acid) triblock copolymer”, Polymer, 2005, 46(3), 653-659.
8. Junli Hu, Zhaohui Tang, Xueyu Qiu, Yadong Han, Qing Du, Xuesi Chen*, Xiabin Jing, Effects of Stereoregularity of Multiblock Copoly(rac-lactide)s on Stereocomplex Microparticles and Their Insulin Delivery, Macromolecular Bioscience, 2005, 5(12), 1193-1199.
9. Zhaohui Tang, Xuesi Chen*, Xuan Pang, Yongkun Yang, Xuefei Zhang, and Xiabin Jing, “Stereoselective Polymerization of rac-Lactide using Monoethylaluminum Schiff-base Complex”, Biomacromolecules, 2004; 5(3); 965-970.
10. Mingxiao Deng, Rong Wang, Guangzhuo Rong, Jingru Sun, Xuefei Zhang, Xuesi Chen*, Xiabin Jing, “Synthesis of Poly(g-Benzyl-L-Glutamic acid)-b-Poly(Ethylene Oxide)-b- Poly(e-Caprolactone) Triblock Copolymer”, Biomaterials, 2004, 25， 3553-3558.

成果评述
1. 发表在Macromolecules, 2005: 38(2), 211-215上的论文，该文章在2005年上半年Macromolecules的Most-Acessed-Articles上排名第20位。
2. 发表Macromol. Theory Simul. 2005, 14, 463上发表的论文，被Macromol. Theory Simul.期刊邀请作为封面发表。
3. 玻璃珠增韧聚乙烯在脆韧转变临界点附近冲断面的TEM照片被选为J. Appl. Polym. Sci. 2003年第8期封面。